Whats your engine specs and gas mileage? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mikep · 06-10-2002, 01:31 PM

With .030" over 350 with sportsman 2 heads 200cc intake ports, 10.2:1 compression, 36 degrees total timing, air gap rpm intake, 800 cfm edelbrock eps carburetor , HEI, .492" lift at 234 duration cam, 1 1/2 inch headers into dual 3" exhaust all in all maybe 420 HP and about 1200 miles on the whole package, and 285/75-16 tires with 3.54 gears( maybe 3.73 ) and a close ratio 4 speed manual all wrapped up in a 4300 lb 1968 heavy 3/4 ton truck I get an astounding...

9.3 mpg in the city

12 mpg on the highway

How about you?

06-10-2002, 01:31 PM	#1
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	Whats your engine specs and gas mileage? With .030" over 350 with sportsman 2 heads 200cc intake ports, 10.2:1 compression, 36 degrees total timing, air gap rpm intake, 800 cfm edelbrock eps carburetor , HEI, .492" lift at 234 duration cam, 1 1/2 inch headers into dual 3" exhaust all in all maybe 420 HP and about 1200 miles on the whole package, and 285/75-16 tires with 3.54 gears( maybe 3.73 ) and a close ratio 4 speed manual all wrapped up in a 4300 lb 1968 heavy 3/4 ton truck I get an astounding... 9.3 mpg in the city 12 mpg on the highway How about you? __________________ No truck :-(



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.