New to the site and impressed with advice and experience shared. I just installed a 502 HO (450 advertised hp) in, get this, my 69 Kingswood wagon fac 4-speed. I have a pair of GM Perf alum '400 heads, rec port, 2.25 intakes decked to 110 cc chambers, hoping to make 9:25 CR. Currently running a M-22 and 3:73 rear.
Want to replace present cam with a moderately bigger hyd roller like what's in the ZZ502? Any recommedations appreciated....