Its time to replace lifters... Ive pushed my luck with the Comp solid rollers long enough. Dart block Chevy... Seen talk about Morel, talked to Wags this weekend about the Crowers, and PAR Racing Engines here in town is pushing the Isky Ez roll(EZX). Wanted to see what all you engine guys are running. Any reason to stay away from any of these three? Pros/cons. Or is there another brand worth looking into? A little about my engine: 555 Chevy, Dart heads, Jesel Rockers. cam is .770/.771 291/294... Springs are 310 on the seat. I turn it regular 7800-8000 Drag Race use.