CcanDo

MrGadets,Have you considered big bore Jessel lifters and bushings? Also some feel a cam belt and the biggest,thick wall push rods help protect the valve train significantly.......I know, just a few minutes and a few bucks.....But, you already have a very expensive, high RPM motor.....It has been said a super tall deck block is a challenge when getting the lifter bore geometry perfect.

Mr Gadgets

CcanDo,
I have had the lifter bores bushed and installed .904 flat tappet lifters from Joe Schubeck. Problem was the cams could not hold up to the hard surface on the lifters. This last year I ran Joe's Roller X lifters, but after 20hrs I had oil psi issues.. started to fall off by 5psi. So I did a tear down and found metal in the mains.. I didnt clean things good enough apparently. So this year, starting fresh.
But lack of money has promted me to not buy that new set of 18* Oval port Darts, Jessel belt, and T&D rocker system and replace the Hogan sheet metal intake. Of course with those heads I need dished pistons and I might as well toss in that 5" crank while I am at it.. All those pieces are on the dream sheet!! It just comes down to money and time as always..

Dick