Expect to turn about 3 grand at 75 MPH.
It's very streetable. And the benefits of kicking the crap out of everybody is well worth the 1 or 2 mpg you could lose.
My car runs about .2 to .3 quicker than my buddies similar notch w/ 3.73's
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4.10's,long tubes & 75 shot...Goes 12.50's
Check it out at
http://www.burnouts.webprovider.com