As a little follow-up it's possible the 70/71 304 were producing 150 net hp but the 160 or 165 rating for the 2bbl 360 is much later- the earlier era 360 2bbl was 175 and the 4bbl 195 before the later 70's- coincident with catalytic converters. Steve A _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list