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Old May 17, 2006 | 06:19 PM
  #1  
83Chevy_Camaro's Avatar
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From: Maine
Car: 1988 Camaro
Engine: 1988 chevy pickup 350 TBI (rebuilt)
Transmission: 700r4- Bowtie overdrives
Axle/Gears: 2:73's
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This is all about My 1988 camaro TBI 350 (not stock)I bought last may..

The camaro had a L03, and 300,000miles on it, and then a guy rebuilt a 350 TBI from a 1988 chevy pickup and put it in the camaro.. which has 30,000miles on it now.

well I went to the drag strip 1/8 mile, and the best run was a 9.92. 60ft was 2.7secs.. Needs slicks.

Heres where i want to change something, I am looking under my car, theres No rust, and my cat. (sticks out like a sore thumb) looks like its from 1988, so Im thinking of taking it out.. and running it without a cat. for a while, and when i get some Money to get a HI- flow cat and some shorty headers, i'll fix it right. This is my somewhat daily driver, and BTW theres no Smog laws in Maine....... yet... knock on wood!

Now i can get some pipe, but, the slip on part of the cat is on Very good!! and isnt coming off without a fight.. But i have to drive to work and school almost everyday.. so i cant take it off, and measure and put it back on.. it be So much easier For me to know the sizes of what i need, get the stuff, and do it all in one big shot!

I know the total length of the cat is 23" bet the inside and outside diameters, i am not sure about.. do i need 2.25" (2 1/4") ID or OD? I want to keep the flange piece on the other end.


Thanks For any help! Any questions, Please ask! Comments are great also!

Last edited by 83Chevy_Camaro; May 17, 2006 at 06:23 PM.
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Old May 18, 2006 | 02:22 AM
  #2  
327_TPI_77_Maro's Avatar
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From: Charles County, Maryland
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The cat flange should be at least 2.5" ID. The TPI cars had a 3" ID cat. If you're running a 350 through the 2.5" exhaust there's your problem right there, replace the whole thing.
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Old May 18, 2006 | 05:24 PM
  #3  
83Chevy_Camaro's Avatar
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Joined: Nov 2004
Posts: 247
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From: Maine
Car: 1988 Camaro
Engine: 1988 chevy pickup 350 TBI (rebuilt)
Transmission: 700r4- Bowtie overdrives
Axle/Gears: 2:73's
well, i am having trouble getting the cat off the crossover pipe... any suggestions?? Its not rusted too bad, its actually pretty decent, But the U-clamp really smashed the top of the pipe.. I was going to hack the Cat off and then get a Cut off disk and make a small slit along the side, and Trying not to hit the Crossover pipe Too much.. But enough so i could take a chisel and hammer and get it spread apart and come off... Any other better idea's?

BTW, I plan on replacing the whole thing with 3" Mandrel bent, with shorty headers..
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