Jay,
I had this cam on my cylinder head when I had that built by Rusch Motorsports. Though got changed out when Rebello built my engine. 63D cam is good, makes good power considering it is slightly smaller than mine, a good street cam. A good number of Rebello engine builds have this cam in as "standard". As this is a Rebello one, the grind is his spec, rather than a generic "off the shelf copy " job. Go for it!
Just double check that your cam towers are compatable (internally oiled/spray bar) as you may have one, and the cam is the other.
Hope that helps
Ian
