I'm running my stock lower with a 3.50 upper on my 3.4 whipple. Well my question is that the stock lower is so much heavier than the 6.5 lfp lower I was running. Would it make a difference, hp wise? I also have a 3.00 upper but I liked the 3.50 better because of the bigger contact area.
stock pulley/aftermarket pulley. (weight issue)
- Thread starter lightning666
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