Super Jet 650 vs 701?

I spent enough on my not running or brapping 760 to buy both a flame AND a powerfactor pipe. I switched to a 650 group k motor and feel it could produce more power.

sent from Fro Diesel using tapatalk.
I agree. There is a replacement for displacement, its called great port size,and port timing, a 650 can never have great port size. A 760 has great size, but not ported correctly one can take the brapp out of any cylinder. I have seen 760s that pull from bottom to top very well, but used a good porting spec.
 
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