Severe engine miss at 3000RPM

[TMAXXjj]

I'm going to buy sme new organizers for them today. The only other thing I can think of to do to it is take the distributor pickup wires and run them out side the car (temporarily) to get them away from everything else and see if it still does it. The Holley ignition box does multiple sparks through 3000RPM. I've been wondering if this has anything to do with it. My grandfather, who works at Holley (yes thats why I have so much Holley stuff) doesn't think it does. I've also been noticing the motor jumps around alot at idle. I know the mounts need replaced but it's still rougher then any of our other motors. I am getting very close to buying a new cam for it. THe one thats in it is of unknown specs. We got it and several others from holley. It doesn't have alot of lope to it and the throttle response is that of a very hot motor but Could it be causing the problem at 3 grand? Could it be some kind of weird test cam or something?