[carpoor]

I kind of chuckle when I hear people say they have 11:1 pistons, etc. They forget that that SCR (static compression ratio), is figured with a specific piston to deck height, compressed gasket thickness, and head cc. I have seen some older blocks check in with .060" + piston to deck clearance before being decked. And, SCR is only one half of the story - the DCR is very important too. The camshaft will affect that number. The low power is surely due to mismatched parts. To make 550 RW through a stalled auto with any engine requires a stout combination. Big, inflated dyno numbers don't equal a fast car. I put a beating on many cars that dyno'd higher than my old LS1 Z28. Combination and attention to detail are everything.