I need to choose to use the Chet Herbert black solid rollers I have or maybe go with Crower. I have heard some negatives on the Herbert/Butler rollers but its unclear if the problem lifters were solid or hyd and in what application.
Who has had good results and who had has problems and under what circumstances? Street? high spring pressure? many passes?
Application for me will be race only. Probably no more than 6500rpm and 650 lift.
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