Hello. New here. Just one question really. I got a cag back prob 8 years ago. Swapped to a 2 stroke last year. Suppost to have a big bore kit. On what i would guess is the 47 since it has a reed. Any way dont know the tooth count off the top of my head. But as for everything else i put an ngk spark plug that was def deeper then the stock plug. Boost bottle cf reed. Did 39mph last year before all that. Now does 46mph. But i have a lightweight flywheel coming and already have the rocket key. Should i retard the timing? Trying to hit 50. Or should i just leave it alone.. never thought it would go 46 from the start anyway. I was aiming for 40.