Thanks for the reply Mark. July 2nd, I purchased a Holley 750 dbl pumper with the choke horn milled off. It will flow 790+ cfm. It has high-flow 110" needle and seat assemblies, 30cc pumps, #32 squirters front and rear, and a vent baffle. The jetting is 72 up front with a 6.5 high-flow power valve. 80 in the rear with the power valve circuit blocked. Has pink cams front and rear. I should also add that I have headers, with chambered exhaust. I leaned out the idle screws a bit and jumped my initial timing to 18 degrees and 36 degrees total. Idles great at 900 rpms, doesn't run hot or have a gas smell, and is quite responsive. I'm working on a very slight hesitation when I instantly stomp on it, then it's, " hold on tight". A little adjusting and I should have it figured out. It's been raining ( flooding ) here every other day, so it's hard to get out and work on it. Thanks again for your detail and if I would've bought a 650, I would have used your input, for sure.
Be well, Rich