Thanks for the replies, I'm worried about buying more lifters and getting the same junk as well. Butler has a bit about differences in the Chev Pontiac lifters. I'll try to post it. Did a bit more reading on using the hydraulic cam and solid lifters, should be ok but. Setting the required lash will shorten the duration. By the time the lobe has moved enough to take up the clearance the crank could move up to seven degrees. that would have my intake opening later and closing earlier. As I am on the edge of detonation as it is I don't want the increase in dynamic compression ratio. I have cranking cylinder pressures of 212 PSI now and don't want to increase any.
So it's change the camshaft and lifters or take a chance and buy new hydraulic rollers. Don't want/ wont buy Comp, two sets is enough.You should see what our Olds brethren are writing about comp on their sites. The Comp part number for Pontiac roller lifters is the same as the Olds number. Same lifters in olds and Pontiac. But what brand? I'll try giving butler a call and see what they recommend.