Hey guys i got a 351 windsor bored .040 over and it has roller rockers in it some of them are loose some are tight...but 1 on each side is much more tighter than the rest the thread of the bolt is sticking up its kinda ahrd for me to explain im just learning and dont know proper names they all look the same except there 2 one on the front left and one on the back right are much tighter about 1/4 inch of thead sticking out from the nut ....the rest are level or sunk in some i cant remeber off hand right now....my cam shaft is a comp cam 280 solid lift...