My old 402/th400/qjet/crane hmv-272 cam/4.1 rear/9.50x16.5 bias would get 10.5mpg around home and 13.5mpg highway@55mph, 3200lb slidein camper it would get 8.5-9.5mpg highway no head wind.
Since the rebuild same cam/engine combo but a new edelbrock 1411 carb and HEI, best sofar was 11mpg, average around home 9.5mpg, towing a 5500lb travel trailer around home 6.75mpg. Thinking of going back to the QJET.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper
72 bug(the better half's) under reconstruction
2009 HHR aqua blue
71 GMC k20 350/sm465
2009 Chevy hd3500 6.6 Victory Red crew cab dually
Dave & Jeanne
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