Sounds like all good information and I thank yall all. You gave me some direction to look in. The blower I'm running is a Weiand 177 with a stock drive of 1.45:1. Holley emailed me back and said that the reason my boost is falling is because its being used good. As long as I don't go into a vacuum at high rpm the blower is working well. The more efficient the intake and exhaust the better, and boost being used up like so is better than building up high manifold pressure. I could gear the pulleys a little more and maintain a boost of about 6-7 psi down low and 5-6 up high. PS. THIS ENGINE IS 9.0:1 The cam may also be a problem like someone mentioned earlier. I'm looking into that also. And just to say THIS ENGINE DOES RUN!!!!!!!!!! The only reason I'm tinkering is just to make sure I'm not leaning it or hurting it when my psi droops. This is a big engine for a small blower but I like it because it stays under the cowl hood. STEALTH ATTACK!!!