heads and cam gas mileage

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04-09-2005, 11:29 AM

oodahss

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heads and cam gas mileage

What kind of gas mileage are you heads and cam guys runnin. Just wondering. Thanks

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04-09-2005, 12:47 PM

Brian2001SS

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Basically the same here, maybe 1 or 2 less, that is as long as my foot stays out of it. Which is very little

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04-09-2005, 01:07 PM

LS1Maniac

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I changed to 4.10s at the same time but my gas mileage hasn't decreased too awful much. I'm running the FM15 with ported LS1 heads.

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04-09-2005, 07:29 PM

General Jack

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I'm cam only with 4.10s (not yet in sig...), I get about 15 mpg in town - which is better than my wife's bone stock Yukon!

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04-09-2005, 07:43 PM

ZLEEPER

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I was getting 250-260 miles per tank what ever that avgs. out to be. Of course that was before I spun a rod bearing. tr224/AS 5.3 II/4.10s. Now for that 402

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