Regarding this matter about cams, our primary goal is to not need aftermarket cams, so as to minimize overall cost, and simplify the modding job to 'head only'.
However, at my last meeting with Mondello's we decided that it appears to be possible to leave some room between the roof of the ports and the bottom of the valve spring seat. So, assuming this all works out in the end, we should be able to accommodate even higher lift(on special order) up to about .600" max lift at the valve. That would open up the cam options to ones which have more lobe lift than the OEM cams, and of course would permit as much duration as any of the aftermarket cams might have. Since there is a "lift ceiling" even with our possible .600" valve lift, there will be some limit on what cams could fit in with the package, but in all cases, of course, our lift with this head would be way more than with any cam alone with std rockers.
As I previously mentioned, if a certain cam is desired, and our roller rocker multiplier ratio pushes the valve higher than the .600" maximum, it will be possible to substitute lower ratio roller rockers to attempt to satisfy the need to use that cam and still stay undet our hard lift limit. I can't say that all cams will fit into the allowable options, but it appears that we will now have much more latitude for that, AND potential for .600" lift which is as high as our max effort racing heads from the Iron Barrel GP heads and the full race Big Heads.
So, as things begin to come into focus more clearly, it seems like there will be even more potential in this Ace UCE/GT head than we first anticipated. And, if ported for use with a big carb, or a large custom throttle body, it could rev even higher for more hp.
Very exciting news. It could potentially be set up as a full race head. Or, just have much wider compatibility for other cams, and higher power potential for the street.
But standard form will still be for .500" lift with OEM cams, and ports that will fit with the OEM size inlet and exhaust systems, for easy bolt-on modding. Other options will be special order.