4150, huge stumble and dies in gear.

So I was having an issue with my old 750 DP and didn't have the parts to rebuild it.
Instead I pulled the freshly rebuilt 950 pro form off my 512 CI stroker and slapped it on my 318....
I did change the Jets to the ones out of the 750. 73F And 79R I think. I also pulled the 6.5 power valve and swapped it out for the plug in the 950. In theory this sucker should be running but NOOOO. it has a huge stumble off idle and dies when I try to drop it in gear.
I also changed out the pump cam and squirters to the ones off the 750. (Pink cam, hole #1 and 28 squirter front and rear)

The thing sounds mean as hell and the one little drive I got in it once passed the stumble it was a rocket!

My AFR gauge reads 13.8-14 ish at idle (in nutral) I'm pulling 19 inches of vacuum in nutral.

Fuel PSI, just under 6 pounds. Mechanical gauge and regulator.

Vacuum advance is plugged but I have tried it both ways.

No vacuum leaks found when spraying.

And carb guys got a idea as to how to make this much carb run on this pansy motor?

The motor dose have long tube headders, and high rise dual plane. MSD and new plugs, wires.