Mr. Benflyn;
You are about to get My standard soap box rhetoric, when it comes to hot rod cams in aircraft engine, BE CAREFUL!
This resonates from my days in engineering school, one of my projects was to do the analysis of a valve train system. By varying the cam lob only, we looked at the stress in the system. A SMALL change in the cam profile makes a HUGE difference in the stresses.
I'm not saying that it can't be done, but come-on, to get the valve open sooner, and keep it open longer, the acceleration has to be greater, the forces will be greater and the stress will be greater.
"LIFE AIN'T LINEAR" to get that relatively small amount of valve opening, large amount of additional stresses will be placed into the valve train.
Once again, I'm not saying it can't be done, I'm not an cam expert, but if your hot rod dune buggy scalds a lifter, who cares. Is the increase in power, worth the possible decrease in reliability?
There it is, Jim