thinking i might have to convert my engine
but think about it, going from 150lb to 15lb is only a 90% reduction. what a waste!!!
thats why 2 strokes have the best powerbands, no valve springs...
in addition, i found this product to further enhance my efficiency and performance
Piston Return Spring - $14.99 : KaleCoAuto, Hard to find automotive items!
KaleCoAuto piston return springs FORCE the pistons back into the motor, no longer relying on gravity! This effectively increases your revs, horsepower, and peak torque!