spark plugs?..delco still ok?
Thread Starter
Senior Member
Joined: Apr 2009
Posts: 554
Likes: 0
From: montreal-canada
Car: 1985 camaro Z/28
Engine: 305 V/8 4bbl carb
Transmission: T5 WC
Axle/Gears: 3-23 posi with 4 wheel discs
spark plugs?..delco still ok?
hi, are ac delco plugs still good enough for a 350 with rough idle cam(no specs) and a 4 bbl carb?...anything out there better or worth trying?...thanks.
Junior Member
Joined: Dec 2010
Posts: 62
Likes: 0
From: sacramento
Car: stock car
Engine: 350 Chevy
Transmission: 1.76 powerglide
Axle/Gears: 3.73s
Re: spark plugs?..delco still ok?
everything i ran from crazy cam to heads and carb gas, E85, Alky autolite 26 plugs worked the best for me.
Member
Joined: Jul 2006
Posts: 282
Likes: 0
From: Tickfaw, LA
Car: 91 & 88 GTA, 89 Formy, 89 bird
Engine: 3 - 350 TPI, 305 TBI
Transmission: All 700R4's
Axle/Gears: unknown
Re: spark plugs?..delco still ok?
Is the ignition system basically factory?
If so, then the R45 delco's work fine.
GM's run good with Delco.
If so, then the R45 delco's work fine.
GM's run good with Delco.
Member
Joined: Nov 2006
Posts: 273
Likes: 2
From: Mesa, Az
Car: 92 1LE B4C
Engine: 350
Transmission: 4L60
Axle/Gears: 4th gen 3.42
Re: spark plugs?..delco still ok?
NGK has some iridiums that I want to try but to date I have always run the delco's and had no problems.
Member
Joined: May 2006
Posts: 194
Likes: 0
From: Springfield, Ga
Car: 1985 Trans Am Limited Edition
Engine: 305 tpi
Transmission: 700r w/ stage 2 shift kit
Axle/Gears: 3.42
Re: spark plugs?..delco still ok?
i've heard good things about the ac delco rapidfire plugs
Thread Starter
Senior Member
Joined: Apr 2009
Posts: 554
Likes: 0
From: montreal-canada
Car: 1985 camaro Z/28
Engine: 305 V/8 4bbl carb
Transmission: T5 WC
Axle/Gears: 3-23 posi with 4 wheel discs
Re: spark plugs?..delco still ok?
yes, it is the HEI distributor with accel cap rotor and coil and plug wires..i figured since i had a different coil and wires that i neede to upgrade the plugs too...since i have headers, i thought a shorter plug as well as more efficient plug was needed...
Supreme Member
iTrader: (1)
Joined: Mar 2010
Posts: 1,088
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From: Goose Creek, SC
Car: 1987 IROC-Z and 1988 Iroc-Z
Engine: 5.7 350 V8 and 5.0 305 V8
Transmission: 700R4 Automatic Transmission
Axle/Gears: 3.27 Posi
Re: spark plugs?..delco still ok?
I recently picked up some AC Delco plugs. Havent put them in yet because of snow and not having the right tools but I have heard great things about them. I think the part number is R43TS. Got new plugs because my car is running like they have never been replaced.
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Thread Starter
Senior Member
Joined: Apr 2009
Posts: 554
Likes: 0
From: montreal-canada
Car: 1985 camaro Z/28
Engine: 305 V/8 4bbl carb
Transmission: T5 WC
Axle/Gears: 3-23 posi with 4 wheel discs
Re: spark plugs?..delco still ok?
I recently picked up some AC Delco plugs. Havent put them in yet because of snow and not having the right tools but I have heard great things about them. I think the part number is R43TS. Got new plugs because my car is running like they have never been replaced.
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: spark plugs?..delco still ok?
I just switched over to AC Delco in the IROC. As you can see from my sig, I run Trick Flow Twisted Wedge heads and thought that the NGK Iridiums might be better. Also wanted a long lasting plug since replacing them is such a chore with the large primary headers. The thing is though that the AC Delco platinums have a much larger electrode than the NGK Iridiums. The AC Platinums also run 100K in OE applications so durability isn't an issue.
I want the largest flame front possible for complete combustion and I think the larger electrode of the ACs will produce a fatter spark, thus helping to generate a larger flame front.
I want the largest flame front possible for complete combustion and I think the larger electrode of the ACs will produce a fatter spark, thus helping to generate a larger flame front.
Member
Joined: Dec 2010
Posts: 178
Likes: 0
From: San Antonio, Texas
Car: 1988 Camaro Iroc-Z
Engine: 1994-1995 LT1 5.7
Axle/Gears: 3.27
Re: spark plugs?..delco still ok?
I have a basically stock 1989 Camaro Rs. with a 305 tbi. I want to keep it as stock as possible. I want to use ac delco. Should i purchase the standard, or platinum plug?
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: spark plugs?..delco still ok?
Big shoutout for Autolites
They did something new, in many different engines, I have seen them go in and be flawless. Where AC or NGK couldn't provide the same experience.
They did something new, in many different engines, I have seen them go in and be flawless. Where AC or NGK couldn't provide the same experience.
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