Idle timing on 383
Hey guys,
Just curious if you have any suggestions on where to start with timing at idle on my 383. I will be running manifold vacuum on the distributor advance. 383 Edelbrock e street heads Holley 670 street avenger Tti headers Comp cams 268/268 454 454 cam Thanks for the info! Gary |
70 -
And why are you running manifold vacuum to the distributor? It's usually set up to use a ported vacuum. Most of those engines like to start about 10 initial advanced, and tune from there. Archer |
Start at 10 with the vacuum disconnected.
|
Some people believe in man. vacuum and some don't. I'm in the "dont't" camp, but whatever you do you will HAVE to either run a performance distributor in which you can shorten the advance curve, or else re-curve the factory dist. Hotter cams need more initial timing. 15-20 is not unheard of, and the reason you cannot just "jack that up" is now it will OVER advance at higher RPM unless recurved.
|
I run about 14 degrees with mine using a "mild" Lunati cam with the advance hose removed and plugged.
|
Thanks everyone.
Gotta do some test and tune time. Car pulls awesome once moving but falls flat on its face sometimes even stalls if I hammer it from a stand still |
All times are GMT -7. The time now is 09:59 PM. |
© 2024 MH Sub I, LLC dba Internet Brands