Proper octane to use on a 305 TPI

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Oct 1, 2007 | 04:27 PM

knightbird123

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Last edited by knightbird123; Jun 7, 2019 at 09:42 AM.

Oct 1, 2007 | 04:45 PM

SpitotRs305

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Car: 91 RS

Engine: 350 vortec

Transmission: T-5

Axle/Gears: not the best not the worst

Re: Proper octane to use on a 305 TPI

the lowest octane to avoid knock

Oct 1, 2007 | 04:48 PM

TexasSilhouette

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Car: 1991 TransAm GTA 350

Engine: 350 SBC TPI

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Re: Proper octane to use on a 305 TPI

87 should do fine on a stock motor.

Last edited by TexasSilhouette; Oct 1, 2007 at 06:32 PM. Reason: Incapable of operating a keyboard correctly

Oct 1, 2007 | 05:03 PM

SpitotRs305

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Joined: Oct 2006

Posts: 1,974

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Car: 91 RS

Engine: 350 vortec

Transmission: T-5

Axle/Gears: not the best not the worst

Re: Proper octane to use on a 305 TPI

87 should do fine on a stock engine

Oct 1, 2007 | 06:13 PM

TexasSilhouette

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From: Colorado

Car: 1991 TransAm GTA 350

Engine: 350 SBC TPI

Transmission: 700R4

Re: Proper octane to use on a 305 TPI

Oops, I stand corrected. Not sure where the "9" came from. 87 should be fine.

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