I like Joel am running 3:36 with M/T in my 71. 3000RPM @70mph. I'm getting 18 mpg as long as I keep my foot out of it,which is really hard for me. With the HP to back it up I can break em loose and burn em for pretty good stretch. 3:36 works for me.
Tuxblacray: She's Back In Black! Check out my pics @ My Link
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Lifetime Member #73
The Money Pit.... and my niece
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Lifetime Member #73
The Money Pit.... and my niece
(click to see a slightly larger version)