high speed miss

Retard the timing and try it again. I just went through all this with my car. Turned out to be a problem within the dist that would keep the advance weights in the advanced position ALMOST always.
Give it a shot. Set the initial timing to about 5-7ยบ and see how it runs.

George
I have played w/ the timing a bit, and its about the same anywhere I put it as far as the miss goes. Also you can see it advance and come back w/ a timing light and giving it gas. I did give it another go today but no luck. Thanks though
have you a compression tester ,pull a valve cover to see if you have any springs bad . almost sounds like a sett of bad valve springs (weak) like 340 cam an 318 springs . need a bit more details . ck as see if valves with a straight edge (remove rockers top of valves)all are touching the straight edge . just a couple things to look at for now
I had thought about the springs, haven't checked yet. Starting to worry about the cam being wiped out also. I've never had one so I'm not sure how they act when this happens and I have no clue how it was broken it, or if they used oil w/ zinc in it. which brings me to another ?.. the oil has gas in it, I figure from the miss but I'm not sure. It was there when I got the car. thanks for the input so far guys.