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Can I run a LT1/LT4 hot cam in a 1991 TPI 305

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Old Dec 3, 2006 | 12:46 AM
  #1  
91 Formula's Avatar
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From: Odessa
Car: 1991 Formula T/A
Engine: 415ci stroker-626rwhp 636flbs
Transmission: 5-speed
Axle/Gears: 4.56 posi
Can I run a LT1/LT4 hot cam in a 1991 TPI 305

I was just wondering if you can run the LT4 Hot Cam in a Tpi 305 without ECM problems.
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Old Dec 3, 2006 | 07:42 AM
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From: south Louisiana
Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
Originally Posted by 91 Formula
I was just wondering if you can run the LT4 Hot Cam in a Tpi 305 without ECM problems.

no, you cant. youll need to burn a new prom for it.
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Old Dec 3, 2006 | 12:36 PM
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91 Formula's Avatar
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From: Odessa
Car: 1991 Formula T/A
Engine: 415ci stroker-626rwhp 636flbs
Transmission: 5-speed
Axle/Gears: 4.56 posi
but the cam itself will go right in or does the cam button need to be filed down alittle, and where can i burn a prom from?
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Old Dec 3, 2006 | 02:09 PM
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1991CamaroRslow's Avatar
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From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
The dowel pin needs driven in or cut down. There's an entire section of this site dedicated to burning your own proms. There's also a tech article on the main page in the tech section.
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Old Dec 3, 2006 | 04:01 PM
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I currently have a Hotcam in my 355 and it needed a custom prom so putting it in your 305 would be overkill. Brisk (on here) is running the hotcam in his 305, ask him some questions about the install. Personally, I'd run the LT1 in the 305. Would wake it up nicely and I don't think you need to do prom work.
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