I'm not sure what I'm going to do with this engine. I might just put my old cam back in it...
There's my suggestion... but you have more time & $ than I do at this point.
One thing I could do that might make sense would be to get another 264/268 cam ground but on a different LSA. Maybe tighten it up to 106 and see what happens. That way most of the variables would be controlled. Not sure it would worth the time and effort to do that test, but it would be a logical thing to do.
