69' RR, 4 spd, 431ci, 242@.050", 10.5:1, 4.88:1 rear. 3" pipes.

Best thing I've done for cold start and driveability is lock-out the dizzy at 36 BTDC with a start retard.

Additional timing at idle effects manifold vacuum and will be beneficial to the MAP signal and the F.I. module's ability to compensate upon start-up.

Follow the solid advice you received concerning the timing curve.