two almost dead cylinders, the two close to firewall, on opposing sides,

I believe 4 and 8.

spark plugs are white, (death white).

Trying to figure out what may have caused this. no vacuum leaks, no pinging.

new edelbrock 750, may be jetted too lean?

low comoression on both, not smoking at al, runs strong, must have burnt
valves.

not a good time to be dumping more money into a "toy".