Aggressive pulling power with a nasty sound, the REAPER 521 grind will shine in Stage 3 or 4 applications with 117 and larger cubic inch engines with added compression ratio. Ported cylinder heads are not required but will complement the cam and add even
performance.
* FEULING also recommends matching this cam with our RACE SERIES oiling system #FE-7097 or FE-7099.
* High lift High Load valve springs are required, Part # SS900-0958
* Heavy duty pushrods are highly recommended.
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* Good cam for a SE Stage 4 Kit.
