Before I open up my valve cover to see anything that might be messed up, I started searching of inexpensive things to do involving the head. From research and help, concluded my valve seals might be leaking. What I don't like? Under 100.00 to replace, complete cost of 1000.00 including labor and machine shop inspection. Last year I had the head refreshed, Super-tech springs/retainers, S2 cams, ARP head studs, new OEM head gasket installed on my 2.3L. No porting done since it's costly. I'm thinking on getting Zero tick lifters since mine "tick"but are there any other things I can knock out while my head is off that's relatively not expensive? Just want to get my money's worth if it's coming off. I'm debating on getting S3 cams, but my S2's have a year of use but figure I can sell that to pay for S3's. Thanks for any suggestions.