Progress report...

I agree with Louis....and I have built and assisted with many performance builds, as well as worked for Cummins Engine INC BUILDING brand new engines, and regardless of application I have never broke in a cam by lessening the valve spring pressure specifically for "cam breakin" and I have witnessed in Cruz Pedregons VIP tent that they do not breakin a cam.....they crank it up on alcohol to check everything over....then they turn the valve to Nitro after the burnout....and let it rip.

The only reason I intially replied was about the Carb....I would not have changed anything from the way it was going to be after crankup and cam breakin..A turbo engine is either running NA/Forced Induction depending on if the piping is hooked up, and if the Engine Load is above the Compressor Threshold, and its almost impossible to build boost without a load.....I would have done it all on the 4bbl. Period. End of story.

Cam lobe wipeage is a chevy problem.