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350 swap

Old 01-20-2019, 11:08 AM
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350 swap

I currently own a 91 Firebird with a 305 tbi. I just bought a 5.7 tpi from an 88 vette that i wanted to drop in the Bird. Trying to figure out if i want to continue using the Tbi intake or convert completely to tpi. And if im swapping completely, should I buy a tpi harness or modify the tbi harness. Thoughts/opinions?
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Old 01-20-2019, 04:17 PM
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Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 11,139
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 350 swap

Even thought you donít have a 746 ecm the pinout is the same.
https://www.thirdgen.org/forums/tpi/...d-density.html
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Old 01-20-2019, 04:52 PM
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Re: 350 swap

Originally Posted by HellNauman View Post
I currently own a 91 Firebird with a 305 tbi. I just bought a 5.7 tpi from an 88 vette that i wanted to drop in the Bird. Trying to figure out if i want to continue using the Tbi intake or convert completely to tpi. And if im swapping completely, should I buy a tpi harness or modify the tbi harness. Thoughts/opinions?
Stay w/tbi on the 350 or swap to tpi?
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Old 01-20-2019, 06:21 PM
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Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 11,139
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 350 swap

I would choose tpi but that’s just me
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