Not to be contrary but we have never had head gasket problems, even at 25# of boost (at least not in the 5 years I've been wrenching with Leo). This last season, the head never came off, nor did the engine leak or crack anything, the valve train is just fine, as it always has been. Yes, this is not for the faint of heart but there are no problems that can't be overcome. Yes, there are better choices for the head but you pick the head to do the job at hand. An awfully lot of it depends simply on the fabrication of components, good machining and assembly techniques. Don't machine where it will weaken the block or expect silicon to bridge a quarter inch gap. Simple stuff.
I was under the impression that you guys only use 10 PSI of boost pressure? Yes, no?
MBHD
