Gas mileage
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Senior Member
Joined: Sep 2007
Posts: 678
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From: NORTH EAST GA
Car: 84 z28
Engine: 355
Transmission: TH350
Axle/Gears: one wheel peel
Gas mileage
i have a carbed 350 with a pretty big cam and a 650 single line holley....ive yet to check mileage b/c ive only ran it around the block......any ideas on gas numbers?> im thinkin 8 or 9
Supreme Member
Joined: May 2006
Posts: 1,857
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From: Maui, Hawaii
Car: 1984 Trans Am
Engine: broken 385sbc
Transmission: G-Force rebuilt T-5
Axle/Gears: Currie 9" Ford 4.30:1
Re: Gas mileage
i got 10-12 with a 650 edelbrock and a 383 running a wild solid cam..
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Joined: Dec 2004
Posts: 136
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From: princeton,west virginia
Car: 89 trans am GTA,90 model trans am 350 tuneport,87 firebird
Engine: 355 small block
Transmission: 5 speed,auto 700r4
Re: Gas mileage
My 355 with 800 cfm gets 10 mpg in town,12 mpg on the highway at 55 with a 5 speed,over 55 ,it drops to 8 or 9 sometimes worse!!!
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
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