[johnjzjz]

all auto terms end up meaning different things to different people and the 3/4 race cam is one of them - the old timers in the 50s explained it to me this way on the flat head V8 fords when you bought a cam it was usually from erskin or isky, offinghouser < spelling but lots of local maching shops in those days had cam tool post grinders in their shops sooo they would take off the base circle the amount you wanted for more lift of the valve, alloy heads were smaller for greater compression ( combustion chamber ) but larger for valve location so you could get a base circle ground, but the trick was in the location it ended up in the cam timing and this is what they did put a batt charger on the batt compression tester in # 1 no other plugs and with the cam exposed they would crank the motor over and advance or retard the cam till the compression was the highest on the gage -- that was the sweet spot the motor made the most power so the term is like its 3/4 of the way their to a store bought unit hahahahahah its what i was told dont know if my leg was being pulled i was the kid in the shop in those days -- jz

yea maybe this riding season i will come and say hello -- jz