MSD distributor has vacuum advance capability but it is locked out.

Fuel pressure measured right before the split to each float bowl, video taped the gauge during full throttle run. dropped to 6lbs was the lowest starting at 9lbs.

It was a holley mechanical, but change to the Holley blue electric. I didn't want to run the mechanical with the electric. I have a friend that the mechical pump diaphram ruptured and the electric filled the oil with fuel. He spun a bearing.

I focused on fuel because if it was ignition it would load up with fuel and come back real raggity. This comes back clean and fast. Also pulled the msd chip to see if it was hitting the rev limit earlier. Still no change.

Twice it seemed to react to hot laping the car. Looking back over the summers time slips it did better the two times I hot lapped the car.

pulling my hair out