alocoholic

Reedspacers more hp On the dyno no increase in hp or torqe.Dich the spacers.They will give you better throtle responce but will lower you crank pressure.If you dragging you don't want to lose no more than you have to.I've been building motors for years and the spacers is only a scame.You want more throtle responce invest in some ported reedcages and some dulestage reeds, or simply get some v-force.Something that will help you.

Shouldn't be any reason why you need to chang domes to run pump gas.19cc domes isn't that much compression.You will only have to change the jet.You will not gain anything by going to 21cc domes.You will only lose toruqe.