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"it" has begun....

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Old Sep 21, 2025 | 07:44 PM
  #701  
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From: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: "it" has begun....

That's great it is 91 octane. Lots of places if they even have E00 at all it's just 87 octane.

We have 87 and 91 octane E00 at some of the normal gas stations here. We also have E10 in 87, 89, 90, 91, 92, and 93 at many gas stations from several chains. Not all those octanes at the same gas station though. 87, 89, 91, and 93 or 87, 90, and 92. One chain also has pumps with Regular88 E15, with Flex Fuel E30 and E85. Couple places have 100 & 110 octane unleaded out back away from the normal pumps. It's like $9.99 a gallon. 87 octane E10 is $2.49 here. I can't imagine what it's like to pay California gas prices.

I live just down the road from the National Corvette Museum Motorsports Park, they have an ExxonMobil gas station at the track with non-ethanol gasoline in 87, 89, 93, and 98 octane unleaded, and 100 octane oxygenated unleaded gasoline, plus 110 octane non-ethanol leaded for offroad/track use only.
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Old Sep 21, 2025 | 07:58 PM
  #702  
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From: Franklin, KY near Beech Bend Raceway, Corvette Plant and Museum.
Car: 1992 Pontiac Firebird
Engine: 5.0L L03 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: "it" has begun....

Turbo Buick engines run really well when you can have boost & timing at the same time.
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Old Sep 22, 2025 | 02:30 PM
  #703  
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: "it" has begun....

Pure gas for the win!

Our local Kroger carries it...90 octane. It's all I use in the 'bird.

Been doing donuts in the grass to celebrate?
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Old Nov 30, 2025 | 10:15 PM
  #704  
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From: Fayette County, OH
Car: basic third gens
Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: "it" has begun....

Hey, did you ever get the codes figured out on the axle tube? If not, in Dana world, that's the "BOM". I don't know if it will be very easy to decipher since it's an over the counter axle for an obscure application. If it were a D60 for the front of a truck (for example), it'd be very easy.

This may be of some use:

https://differentials.com/technical-...dentification/
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Old Feb 20, 2026 | 06:40 PM
  #705  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Wild im just seeing this, nope, haven't really looked into the axle tube codes


Originally Posted by 86blackiroc
Hey, did you ever get the codes figured out on the axle tube? If not, in Dana world, that's the "BOM". I don't know if it will be very easy to decipher since it's an over the counter axle for an obscure application. If it were a D60 for the front of a truck (for example), it'd be very easy.

This may be of some use:

https://differentials.com/technical-...dentification/
Reply
Old Mar 1, 2026 | 10:33 AM
  #706  
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From: Michigan
Car: 1992 Trans Am GTA
Engine: L98 5.7L 350
Transmission: 700r4
Axle/Gears: 3.23
Re: "it" has begun....

Originally Posted by TTOP350




Have been chasing this NOS aero spoiler for several years, finally found its home. It's on standby incase i have an issue with either of my 92s
nice! I got a nos one too! But unfortunately one of the corners got broken on mine but I do have the corner for it.
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Old Mar 1, 2026 | 02:12 PM
  #707  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

I'm still in paint jail, have material to recover the seats and working on console.
in the meantime, ive opened up another can of worms by doing a valvetrain inspection on my 89. Solid roller, been together for 14yrs. Buying correct shaft rockers and replacing 8 intake valves

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Old Apr 6, 2026 | 09:39 PM
  #708  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....




Waiting on parts for both now
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Old Apr 7, 2026 | 04:13 PM
  #709  
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From: MICHIGAN
Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: "it" has begun....

You gotta quit breaking stuff Tony! Good thing you have spare 3rd gens.
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Old May 7, 2026 | 06:30 PM
  #710  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Well, let's do something out of my comfort zone, I picked up a 94 LT1 formula.
it's roooooough, has some mods but it isn't rusty. The bottom is really nice. Not pebble beach nice but paint is still on it.
Supposedly, around 54 yellow 94 formulas? Haven't got the numbers book yet



Last edited by TTOP350; May 7, 2026 at 08:09 PM.
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Old May 7, 2026 | 07:33 PM
  #711  
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From: Fayette County, OH
Car: basic third gens
Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: "it" has begun....

Awesome! I haven't seen a yellow one in a long long time. Actually, I think I've only seen one in total and it was back in the 90's.
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Old May 7, 2026 | 08:06 PM
  #712  
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From: Kansas
Car: 91 Z28
Engine: 6.0L LQ9
Transmission: T56
Axle/Gears: Dana 44 3.92
Re: "it" has begun....

There was a black '96 Formula that used to run around my hometown. Hardtop 6-speed car. Rumored to be fast, never could get the "old guy" to run me. Car would have been a few years old at the time.
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Old May 8, 2026 | 08:18 AM
  #713  
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From: Royse City, Tx
Car: Yellow Gold 1986 IROC-Z
Engine: LG4 305
Transmission: 700R4
Axle/Gears: 2.73
Re: "it" has begun....

Originally Posted by TTOP350
Well, let's do something out of my comfort zone, I picked up a 94 LT1 formula.
it's roooooough, has some mods but it isn't rusty. The bottom is really nice. Not pebble beach nice but paint is still on it.
Supposedly, around 54 yellow 94 formulas? Haven't got the numbers book yet

Nice! 6 speed? A black or yellow M6 Formula was high on my want list in high school. I graduated in '94 and wanted one of these so bad.
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Old May 8, 2026 | 06:25 PM
  #714  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Originally Posted by GearheadSS
Nice! 6 speed? A black or yellow M6 Formula was high on my want list in high school. I graduated in '94 and wanted one of these so bad.
Sadly it's an auto but probably will be swapped.
I wanted this color, couldn't really be to picky about the options.
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Old May 8, 2026 | 06:28 PM
  #715  
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From: Royse City, Tx
Car: Yellow Gold 1986 IROC-Z
Engine: LG4 305
Transmission: 700R4
Axle/Gears: 2.73
Re: "it" has begun....

Originally Posted by TTOP350
Sadly it's an auto but probably will be swapped.
I wanted this color, couldn't really be to picky about the options.
I don't blame you. Only so many out there so you can't get too picky. I did the same when I got my IROC. I wanted the color and rust free more than anything else.

Does it have the transmission perform button on the console? I'd still drive and enjoy it with the auto.
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Old May 9, 2026 | 05:16 PM
  #716  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Yes, it does have the trans button. 2.73 posi rear. Airplane mode!
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Old May 11, 2026 | 04:33 PM
  #717  
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From: Central IL.
Car: 1985 Iroc-Z (yellow)
Engine: LB9
Transmission: MXO
Axle/Gears: GU6, G80, J65
Re: "it" has begun....

That's awesome! Love the yellows ones too. Where'd you pick it up at?
It'll be worth the effort.
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Old May 24, 2026 | 05:06 PM
  #718  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Originally Posted by Double
That's awesome! Love the yellows ones too. Where'd you pick it up at?
It'll be worth the effort.
Saw it on market place in MO, he gave me another no title 94 as a parts car while there. v6-5speed no drivetrain.
and I'm going back for another 02 he has.
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Old May 24, 2026 | 05:10 PM
  #719  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Small ttop350 update, rockers came in. Now to set them up correctly.

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Old May 24, 2026 | 10:28 PM
  #720  
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Car: 90 Formula / T-tops
Engine: 305 TPI
Transmission: MD8
Re: "it" has begun....

Gorgeous! What do you do to set them up properly?
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Old May 24, 2026 | 11:14 PM
  #721  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Originally Posted by LiquidBlue
Gorgeous! What do you do to set them up properly?
If I'm reading the instructions correctly, it's basically shimming the rocker stand correctly with the tool they send
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Old May 27, 2026 | 08:25 AM
  #722  
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From: Central IL.
Car: 1985 Iroc-Z (yellow)
Engine: LB9
Transmission: MXO
Axle/Gears: GU6, G80, J65
Re: "it" has begun....

Nice score!
Have any more pics you want to share of it yet? T-top or hardtop?
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Old May 27, 2026 | 10:43 PM
  #723  
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: "it" has begun....

Originally Posted by Double
Nice score!
Have any more pics you want to share of it yet? T-top or hardtop?
pictures of the 94? Ttop. I'll try and keep somewhat on topic lol
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Old May 28, 2026 | 08:55 AM
  #724  
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Car: 1985 Iroc-Z (yellow)
Engine: LB9
Transmission: MXO
Axle/Gears: GU6, G80, J65
Re: "it" has begun....

Yeah...sorry, my bad, lol.
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