383 Tpi
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Junior Member
Joined: Apr 2004
Posts: 1
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From: fredonia,NY
Car: 29 roadster
Engine: 383 stroker
Transmission: th350
383 Tpi
I am putting together a 383 stroker 9.75: 1 compresion. What I need to know is what # injectors should I run. Also the cam is 270 duration, 470 lift. The tpi is an 87 iroc 305 tpi. HELP!!!!!! I'm new at this. Thanks
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Joined: Sep 2001
Posts: 1,195
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
I am thinking about doing the same thing and I will probably use something in the 32-36 range.
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From: Nashville TN
Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
B/c of the air restriction of the TPI intake, I would say you definatley wouldn't need more than 30 lb injectors. A buddy w/ miniramed, fully ported AFR 383 230/236 setup, is running 30s and not maxing them out. And that is with a lot more airflow than a TPI is going to be able to deal with.
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