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Originally Posted by elohssa
Hey, My car is sort of similarily specced I built it for corner carving also and I just took it on a long road trip through the mountains best I got was 19mpg. It's got a 455, t-10 4spd 3:08 gears,fairly mild cam (forget specs) holley street avenger 770cfm carb, 1969 stock intake, and slightly built/ported 4x heads that have been milled 0.40 The gas prices just about killed me on this trip but I can't bear to park it (It's just too fun to drive). Next year it's getting fuel injection and a TKO 500, That should bump it up to the mid 20's I hope. Heres a pic taken in British Columbia
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Nice ride! Yep, it's similar to my set up and all I can tell you is that even if I wasn't getting the milage it looks like I'm getting I wouldn't be able to let it set long either.
Cliff or Tom or a couple others might be able to tell me where I'm going "wrong" with my milage calc. if I am because I know they have had a BUNCH of experience with Q-jets and different set-ups. All I can tell you is that I think a lot of people that check there max. milage might be doing the old "Mr. Owl" check, "One, Two, Three... CRUNCH (the foot goes to the floor)." I was ONLY on the primaries other than the one pass and possably pulling out on the highway once where I might have cracked the secondaries.