Not Ranked
Warning, I'm not a mechanic.
Aren't there problems with the distributor gear as well when using roller cams? Sometimes people will use a brass distributor gear, which gets chewed up and fail, and instead should use a cast iron gear.
In my opinion, it boils down to cost. A flat tappet cam and lifters is about $200 +/- and a roller cam can run $1,000-1,500 +/-. Either way, always use quality parts.
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