Quote Originally Posted by tudorkeith View Post
hey guys, here's a quick little question for all you engineering types. in my rod, I have a 350/350 with a 2:76 rear. last year I rean a 25" tall tire, now I have a 30" tall bias ply WW. what will that do for performance , milage etc? what is the effective gear ratio? thanks
You can plug your numbers into this calculator and see what you get...http://www.ringpinion.com/Calc_RPM.aspx