97stanger

I am in the middle of degreeing my cams for my motor, I went with the Cloyes adjustable cam gears kit (comes with new chains, sprockets, tensioners, etc). I bought the 96-98 kit because my block is a 97GT block, however my heads are PI heads/PI blower cams. Just want to make sure that I bought the right kit because I have been told that the timing kit should be bought according to the year block I have. Also, would anybody know if I need spacers behine the adjustable cam gears?? thanks