I have recently discovered that my valve gear is a little less than new and will need to be overhauled, i have read many things about the terrible materials used for new shafts but might have found a place for a Tufftrided shaft that should do the trick (i hope), my other concern are the rockers themselves, i did read on this forum (cannot find it now) where someone was having all sorts of problems with their new rockers seizing up on the shaft. Can someone point me in the right direction for a good source for these. thanks