First want to thank you guys for the explanations on venturi vac and manifold vac.  VERY VERY helpful. After my MSD cooked I installed my old dist. ( 57). Has pertonix kit.  Need to change advance. To update you I have put in the 2500 stall convertor, sure help, along with adding a couple thousands on the valve adjust. Now idles.  Timed to 14 int. put on vac line jumps to 55 deg.  Have an adjustable vac can. Think I need to bring that down some??  Much more power, but afraid of the 55deg.  Does not ping.  Hope you all can understand what I trying to say, little merrgie.  Need advice on advance springs and whatever you guys think will help..

Thanks in advance.     God Bless

Eddie

Lake Forest, Ca. 92630