I am at wits end. I have a new blueprint 355 and I'm having a really tough time getting it tuned. It has an Edelbrock 1906 650cfm carb on top of an rpm air gap manifold. It is pulling roughly 17 inhg at idle. Initial timing is at 16 degrees. It feels fine under light to middle throttle accelerations. When I quickly go to wot it basically goes silent with no acceleration then I get the pops out of the exhaust. In tried going richer per Edelbrock, and leaner. I've looked for leaks, verified timing about ten times. I have absolutely no clue what is going on with this anymore and I'm getting desperate. Any help would be greatly appreciated. Further info... Advance is hooked to manifold vacuum, and the plugs are a little black, hence why I tried leaner once.