can u guys help me pic a motor builder my choise is ether fast or herrs racing...help me pic one and the reason wy one over the other....looking to built a 421 cub...thanks
need a starting point...
stock drag ported cylinders
vf3
39mm pwk
cpi inframe
7mm crank
170 comprecion
like to know what jetting and how much timing for 110 race gas
thanks ...
need a starting point...
stock drag ported cylinders
vf3
39mm pwk
cpi inframe
7mm crank
170 comprecion
like to know what jetting and how much timing for 110 race gas
thanks ...