So, in about 2-3 weeks I plan on replacing all the lifters in my car. I hear what sounds to me to be a lifter tick. I had a bad lifter in my previous fox body and the sound was the same. I realize that there is a chance (even if relatively small) that the sound could be a rocker arm out of adjustment, but I cannot diagnose that without pulling the thing apart anyway. When I go to replace the lifters I will also be replacing sensors & hoses simply because they have age on them (I'll also be cleaning everything throughly as a labor of love). I have never personally replaced lifters before. I'm especially concerned about removing & re-installing the distributor correctly, as well as adjusting the valve train properly. I've taken off intakes several times before, so no big deal there. By the way, I have GT40 heads (I believe they are y303, but I'll find out for sure with the valve covers off). I have a Haynes manual and all, but I would really appreciate input from the forum brain trust. What sayeth you fine sirs?