I agree with you 100%. My old setup had it all (Bolt On). Pro design cool head with 20cc domes , SB CPI pipes , Pods , +4 time , 15 tooth sprocket and when she finally blew since the damage was tremendous. We had to bore it out to 66.25.
Now with my new setup on 64 ported cylinders , 4mm hot rod crank and stock head. It's a totally different bike. And yes once it's ported correctly hold on tight.
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