I got my trickflow heads,head bolts,prw 1.6 rockers, rocker correction kit and Smith brother push rods through Mike at B3 racing. The heads went on my 2000 magnum 360 straight out of the box. Been running for over 2 years and lots of 7000/7500 passes. With no problems. So I woukd be very interested in hearing what problems you was having the prw rockers. The only thing is I wish trickflow woukd of put in more side clearance for the push rods. I have 3/8th size push rods and the clearance was really close