nate, im sure i dont have the wire crossed, i check them all the time. im also only using a electric pump, no mechanical pump, and my guage says im getting 6 psi to the carb. ill check the mufflers to see if it feels like the pressure is even. steve, when i did the upgrades i took the whole engine apart except for the pistons and crank. i doubt that the balancer sliped, its a brand new sfi certified and all that crap ta one. as far as mufflers go, im running through a pair of dynomax 3 " in 3" out. the ignition system is a msd 6a box, with a msd mechical advance billet distrubitor and a external coil. it sounds like my next plan of attack is to check the cam to see if it is going flat. this sounds like the most logical plan.