just rebuilt runs bad

We have almost sorted out a 440 with the same problem. Built by Dvorack, so cam should be good at degrees. Ran good, then started to slow down. Replaced the carb and dist at the same time. The pos procomp dist had 1 reluctor blade at .010 gap, 2 @ .oo8, the rest touching the reluctor.

The msd, runs good, self shifts into 2nd at 70 mph, full pull in 1st and 2nd, then doesn't climb rpm as fast at 4400 in 3rd {3.55 gear}, seems not to be fuel starvation. It wants 22 @ idle, like my bigger cammed 340. That puts total @ 42 today; no ping.

We are scratching our butts, also.