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Is 400hp 350 possible?

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Old 11-07-2016, 09:53 PM
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Car: 1989 Trans Am
Engine: 350
Transmission: 700 R4
Is 400hp 350 possible?

I have stock 350 that was tpi, wondering if it's possible to get 400hp from it? I want to do carb. Wondering if you guys have any build list or tips for doing so if possible. Thanks
Old 11-08-2016, 07:03 AM
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Re: Is 400hp 350 possible?

Get close with a big cam and carb intake. Ideally needs head swap like vortecs at a minimum
Old 11-08-2016, 07:18 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
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Re: Is 400hp 350 possible?

Yup, what Orr said, I'd keep it EFI and use a short runner intake tho
Old 11-08-2016, 10:03 AM
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Re: Is 400hp 350 possible?

400 HP 350?
All day everyday with heads, cam, intake and headers.
EFI might prove easier with respect to tuning. A carb will be less expensive (and not that difficult to tune).
Old 11-08-2016, 05:37 PM
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Re: Is 400hp 350 possible?

EFI: we should be more specific and EXCLUDE TPI from that list. Other forms of EFI, yes; TPI, no.

Stealth Ram, MiniRam, any of the various 4-bbl port EFI intakes, etc.; just not, TPI.

But yes it is very readily done w a carb as well. That's what people did for the many decades of 400 HP 350s that went by before EFI was practical.




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