What's most important is using cam lobes that are correct for the application. Too many people take a big ol' race cam with aggressive ramps, try to drive it on the street and end up with big problems. Then they go on the internet and tell that solid rollers shouldn't/can't be used on the street.
I've personally built several solid roller cam street use engines. Many of them have been in use for years now, and none of them have had an issue.
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