ORIGINAL: Slow Motion

If you're running a 257 carb, they perform better with no velocity stack. Set them to 2 1/4 to 2 1/2 low, and 7/8 to 1 high. Get an NGK plug in there, before the Champion comes apart and ruins your motor ( happens alot ). All the pro eng. builders ( except Tony ), will tell you and have dyno, and years of eng. teardowns to prove it, that 8 to 10 oz. of GOOD FULL SYNTHETIC 2 stroke oil, to a gal. of gas, makes the most power and the engs. show no signs of ware.