Anyone have install instructions, im going to intall howards rattler cams, im not changing valve springs or anything just cams, and im going to try it without removing the front cover, using andersons tool, just need to know whats involved, ive never done one on a 98 gt 4.6, so are there valves or anything that need adjusting or is basically just bolt in? Cant seem to find any install directions anywhere, thanks for your help.