As a lot of you know I’ve been fighting junk cams.... anyway that is behind me so now here is the current issue. Sbc, Edelbrock performer heads, cam and intake on a 355. 650 Holley dual feed new MSD distributor. 10.5:1 Keith Black flat tops been running 92/93 pump gas. I’ve been fighting a dead spot when you stab the throttle and have absolutely black and carbon nasty plugs, even fouled a few. I’ve been all over the map with jets, power valves, timing you name it. Earlier today I was out for a test drive and just let it rap up to about 7k, and the belt flew off for some reason at that point. Shut it off, coasted to the corner put the belt back on and came back to the house. Soooo, now I’ve got 67 primary jets, 75 secondary jets. 6.5 power valve not exactly sure where the timing currently is because I’ve been doing the twist it and see how it reacts thing. The car usually runs right around 200 on the temp but now it continues to climb and after about ten miles it’s 230 and climbing still. Any thoughts on what in the hell is going on and why I can’t get the dead spot out of it? Played with the pump cams and everything, getting pretty irritated with the whole thing and now the temp issue to add to it. Any input would be welcomed.