cant smoke the skins...problem??

Torquehouse you nailed it. That cam has a great deal of duration at .050 which drops the cylinder pressure. I have to also wonder if lifter preload has ever been checked. If the block was decked or the heads cut this will be an issue.Any racer will tell you to tighten up the lash on a solid cam for a marginal track, this would be the same as having too much lifter preload on the hydraulic. I have experience with that same cam. I swapped it out for a crower stage 3. HUGE DIFFERENCE!