Ok so heres the deal im going to open up the valve reliefs in my stock pistons so that I can do a e303 cam with the 1.72 rockers on the afr185s make sense? well i dont want to take apart my heads so if any one local has a set of stock heads that i can borrow to do the job please let me know i only need them as a guide. If im wrong someone slap me and send me in the right direction. Also if anyone knows off hand where i can get that tool let me know? Thanks guys!