[chuckies76ta]

Originally Posted by rohrt

Are you using roller lifters? I found that some of mine would easily push down the plunger by hand. This caused problems for me even when I hand tightened down the nut, or when checking by rolling the pushrod to check for resistance.

Yes, that's what I'm talking about. You can end up tighten too much and hang the valve open.

Charles

[rexs73gto]

Did you soak the lifters in oil before you put them in? Also are you sure the timing is correct by that I mean do you have the timing gears & chain on correct?? When you tightened the rockers down did you make sure the plunger in the lifter didn't go down into the lifter bore? If you tightened the rocker to much you can end up with the same thing to. If you tightened it even enough to go down into the bore a little bit will also cause that to. I'm only asking this but did you make sure you installed the dist. so it's wired so it goes counter clockwise. Pontiacs are not the same as a chevy. I'm asking only because I don't know how familiar you are with Pontiac .