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post #68 of (permalink) Old Sep 18th, 19, 9:14 PM
71454Chevelle
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Darren
 
Join Date: Oct 2000
Location: Indianapolis IN
Posts: 3,189
Re: 11.5 mpg 396?

Quote:
Originally Posted by cuisinartvette View Post
12 is believeable and damn good from a low geared fine tuned big block.
BEsting a 5.3 no way not a chance...
Last year I took a short all interstate road trip, about 100 miles, and was able to get 15.5mpg. In 6th gear at 70mph, the engine is turning a little over 2200rpm.

And you are correct, I cant compete with a modern LS motor as far as fuel mileage, but thats ok, I'd rather have my BBC.

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems Venom VX 1050
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Moser axles
30x12.5 ET Street Radial
525++ rwhp
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