Any one running these, are they a good head for a 331 w/ custom cam and systemax intake
http://www.racingheadservice.com/Information/Technical/Heads/SBFord_180cc.asp
http://www.compperformancegroupstor...H&Product_Code=35304-02&Category_Code=SBF_180
http://www.racingheadservice.com/Information/Technical/Heads/SBFord_180cc.asp
http://www.compperformancegroupstor...H&Product_Code=35304-02&Category_Code=SBF_180