305 performance

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03-13-2005, 09:07 PM

x3jj3x

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Car: 1989 firebird

Engine: 305

Transmission: 700r4

305 performance

i was just wondering how much horsepower would the stock 305 internals could handle. thanks your the answers in advance and please dont flame on me

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03-13-2005, 09:28 PM

LB9GTA

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Car: '91 GTA

Engine: 421sbc

Transmission: Powerglide

Axle/Gears: Ford 9" with 3.89

I'm up to about 325hp with a 75hp shot of nitrous, all stock internals.

LB9GTA

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