Gas Question
Thread Starter
Member
Joined: Mar 2011
Posts: 281
Likes: 1
From: Kalamazoo,MI
Car: 1985 IROC-Z
Engine: 350 TPI
Transmission: T5 manual
Gas Question
I got a 350 tuned port in my car and the only mod ive done to it is add headers and 3 in exhaust with no cat. what gas is good/or better for my car? regular, mid grade, or premium? thanks.
Thread Starter
Member
Joined: Mar 2011
Posts: 281
Likes: 1
From: Kalamazoo,MI
Car: 1985 IROC-Z
Engine: 350 TPI
Transmission: T5 manual
Re: Gas Question
will regular work? Cuz someone told me premium so I've been just putting premium but if i can cut down on my gas bill a little id like to know lol.
Joined: Feb 2013
Posts: 153
Likes: 0
From: Tijeras, NM
Car: 89 Black GTA
Engine: 'close to' stock 5.7 but trending>>
Transmission: 700
Axle/Gears: 3.27
Re: Gas Question
here's the specs for an '85 5.0 TPI:
85 IROC A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI
compression is mid 9's, use mid grade. you dont need premium until the high 9's. 8's and low 9's can use regular.
85 IROC A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI
compression is mid 9's, use mid grade. you dont need premium until the high 9's. 8's and low 9's can use regular.
Joined: Feb 2013
Posts: 153
Likes: 0
From: Tijeras, NM
Car: 89 Black GTA
Engine: 'close to' stock 5.7 but trending>>
Transmission: 700
Axle/Gears: 3.27
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