I was buffalo squirreled 3 years ago I took the POS out and am putting it back together in the next month or so. In has an acert crank rods and pistons round port head 7fb pump and advance when I was working on it in the truck yet a converted it to Bosch nozzles he told me compression was around 14.6 and he had to mow of the steel pistons for valve clearance issues. What does every one think of this set up? And should I do something different with compression and should a be worrying about spray angle? Is the 7fb a good engine cam? What is the max protrusion I can run? Cause in 40000 miles had 3 blown head gaskets had a engine builder out and said it's with in cat spec. So he milled the head and told me to put in new cat head bolts. When I took it apart it had .001 protrusion. Is .055 max? Thanks for the help?