Need some advise, 79 302 bored .060 over. in a 79 F100
Edlebrock Perfomer intake, Edelbrock 650 carb, elec choke, MSD 6ALN box, Crane WG1144 cam.

Truck seems to lay down on me during heavy acceleration, I tried to advance the timing a bit and I get bad spark knock.
I turned the diaphram out on the vacume advance as far as I can and put in as much timing as I can get and it's at 7 degrees.
Anyone got any ideas how to cure it?