> Total valve lift is cam lobe lift x rocker arm ratio. I think the ratio is 1.5:1? Or is it 1.6:1 like the sixes? Hey Frank, you've got SBC's on your mind! On your knee's, bow towards Kenosha and beg forgiveness! AMC V-8's, like the I-6's use a 1.6:1 rocker... Cheers, Dave _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list