Gas mileage!!

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Sep 9, 2001 | 09:08 PM

BP89IROC

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Joined: Nov 2000

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From: Corpus Christi, TX

Gas mileage!!

What kind of modifications can i do to increase my gas mileage? I have headers and all the stuff in my sig. Thanks for any help!!

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1989 Iroc-Z TPI 350 auto 4-spd Removed MAF screens K & N filters, Hedman smog shorties, accel 8mm wires, made for you wire looms, flowmaster american thunder cat back, gutted cat.

Sep 12, 2001 | 11:25 AM

Desert86Roc

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Well...what gas mileage are you getting now?

Sep 12, 2001 | 01:14 PM

BP89IROC

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Joined: Nov 2000

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From: Corpus Christi, TX

Right now i'm getting between 16 and 18 which is pretty good but i think i should be able to do better.

Sep 12, 2001 | 02:12 PM

85transamtpi

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From: Chitown

That seems pretty good for a 350. My 305 gets that kind of mileage around town w/3.27 gears. Maybe MSD box would help...and would be better overall anyway. That and a tune up (plugs/wires/dist cap/rotor). I wouldnt be too unhappy if I were you considering my smaller gets similar mileage.
peace

Sep 12, 2001 | 02:38 PM

fireturd350

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From: New Boston, IL, USA

Car: '90 Formula 350

Engine: 383 SBC

Transmission: ProBuilt S/S 700-R4 & ACT 9" Stall

Axle/Gears: 10 bolt 3.23

I recently installed a MSD 6AL box and GM Blaster coil onto my 350 tpi and I noticed I a slight change acouple more mpg, but I have 22 lb injectors too.