[BEB]

WOW - a wealth of info Guys. Thanks.

Comments:

It will happily idle at 800 rpm with 15/16 Hg vacuum.

I have a 10.5 Power Valve in at the moment, but Holley suggest I go back to a 6.5?

As I've already said; I cannot get both .015" gap at WOT and the pump to work as soon as the throttle opens which is why I thought that maybe the Green cam was wrong and a different colour/profile would be better?

I have got a new Speed Demon 650 vac. sec. carb which I've tried but which had a hesitation further up the rev range which even spending 2 days on a chassis dyno couldn't fix. Went back to the Street Avenger 770 and that particular problem went away. In theory I would be better with a 650 over a 770, but in reality the engine prefers the bigger carb?

It is a new MSD (non vac. adv.) distributor set at 14 degrees at idle and 34 degrees total at 4500rpm and 10:1 CR.

I think that covers all of your points?