you should put the carb to baseline, it probably needs to go down on the prim jets. once you get the miss sorted maybe you can play with removing the secondary side power valve and upping the jets 6-8 steps...

also, i've seen pics of those carbs new or NOS without air bleeds in some positions, you should check that. [/quote]

All good advice, I will take it back to base line and and work from there.. also, what has me stumped is, there is no noticable "miss".. surge or even a loss in power, it's just that it doesn't RPM easily past 4k in high gear.