ok, i think i need new lifters... but i have some questions to ask before i make a decision...
my upper end is noisy. and sometimes i can hear when a lifter isnt pumping up and it raps a little... it goes away after a few minutes...
now, my question is, by going to new lifters, is there any noticible performance gain? if they arent pumping up all the way they arent opening the valves fully correct?