This cam was in a 970 or 900 something CB750,saw it run in the 6's in the 1/8
mile before #2 rod went thru cases,sawed its way around and bent chrome cvr
on elec starter,it hit the cam chain tensioner lock bolt!! I fixed another 750 for him
and got engine in trade,was I surprised when I took it apart a couple months later.
Cam is Engle J BR21.Don't know how safe but it sure worked!Bill

