Just got my motor back from the builder and I'm having some problems narrowing down the jets I'm going to need. I have a 421 cub, drag ported,v3 going to be running shearers in frames,and I have pwks 28 with k&n pods.the elevation I'm at right now is 1070 feet. I know the 28 are not ideal but I am running a Lil low on funds to dump in the bike at the moment.