Stock heads/rotating assembly, hot cam/vlave springs- how far can you go?

Well after some hard thinking and teeth grinding, my plan is much less ambitious for this summer.

Edelbrock RPM Airgap with 1" spacer
Rebuild Demon 650
Recurve distribtutor
Possible: New oil pan with windage tray.
tune, tune, tune
Drive and enjoy as much as possible.

Otherwise, it will come down to taking care of the engine to keep it healthy, so I can sell it as a strong running basic motor next year and buy a stroker/aluminum head crate engine.