01-19-2004, 06:16 AM
|
|
CC Member
|
|
|
Join Date: Dec 2003
Cobra Make, Engine: AK 427 - 409ci SBC, Getrag 5 sp.box.
Posts: 53
|
|
Not Ranked
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?
|
Hybrid Mode
