Quote Originally Posted by bigjon 454
ran it for 30 mins with by the ear timing, have read many posts saying bbc like 16-18 initial. so that much is clear to me, but after I disconnect and plug advance what rpm should I hold it at to hit er with the timing light?
Just to clarify; you should disconnect and plug your vacuum advance before you make any timing adjustments. You probably already know this, perhaps I misread your post.