Not Ranked
I don't have the same engine size or combo as you do.The car came with a 351 with Edelbrock Victor Jr heads, unknown specs but lopey cam, a Edelbrock Victor Jr. manifold, and a Holley 750 double pumper. It hated running under 2500 rpm and since I have 3.10 gears and a Tremec 3550 with the tall (.67) overdrive the combo didn't work well for me. I now have a Holley Street Avenger, 670 cfm with an Edelbrock RPM air gap. I lost about 30 hp at the top but get 322 at the rear wheels. The car is very driveable. The "Dyno Shop" told me to be prepared to spend a lot more dyno hours setting up a Demon, they steered me to the Street Avenger and I love it. You would probably need a 770.
Good luck - John
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