Need help tuning Quickfuel carb

The Demon that was here had the wires run perfect in moroso looms. You could barely see the arcing. My son saw the spark jumping while holding the throttle open on the carb. We fought this problem for a while, Even changed plugs thinking we had a bad set. It ended up being the wires. It was almost acting like a 2 step. Try the wires or put a stock coil on it.

This was a customers Demon. It was stuck here for a month until we figured it out. Everything was new under the hood. The only thing we didn't change was the wires because he just had the car tuned before we did the motor. It came here for a popping in the carb . It was the Cam wiped.

One thing led to another and the complete motor was done. We added the MSD ignition with the new motor. If we would have left the stock ignition in it the wires would have been fine. I put them on my Duster I am selling , It has a factory ignition . They were new dark blue taylor wires. Like I said my car does not have a problem with them.

If you have a dual plane intake it cannot be fuel . #6 and #8 are on a different plenum. I don't think it would be the 4 hole spacer. One other thing you could check is lifter pre-load. Oil pressure could be holding a valve open at a higher RPM if the pre-load is more then a half turn.