have a listen

805moparkid said
there isn't alot i can think of that would wear that fast... if it was a lobe i would think it would just go... not clear up with a lash and then come back...

(To OP, re-lash and see if one is now loose, dead give away)

were any of the adjusters really easy to turn? maybe it just backed loose...

Their was maybe one that was easy to turn. The rest were pretty hard to adjust. I assume the cut in the palm from the 3/8 wrench is a norm for adjusting valve lash.:D

slickchick said
sounds like a fouled plug , { Holley on a slant six syndrome }

New plugs were put in yesterday. The ones I took out looked fine.

valentino automotive said
Maybe the vacuum advance is hooked up to a full vacuum port. Or a bad distributor vacuum advance diaphragm or the little rod that move's the advance. Also at night run it and see if a header tube gets hotter than the others. that would be the cylinder to look at. Just a thought. :-)

I have two vac lines. one from dist to carb. the other from rear of carb to valve cover. Thats it. Idle rises and falls a little too. Like vac keeps shifting.