zsn
duplicate as much as possible the info given by Mopar to ya
get your head and compression nailed down before you buy a camshaft and etc
calculate your quench and try and get .030-.040 have that figured out and tentative gasket to get that dimension
what year block LA or Magnum and is it square already- check before spending $$$ because you do not know how much of a cut to square it up
did you specify LA shaft or Magnum Heads (and intake) just to be sure
have a straw man rocker picked out
unless you want to do B3 spacers forget roller tip and plan on adjustable Iron rockers preferably from Rocker Arm Specialists
read all 4 parts
B3 Racing Engines LLC - Mopar Rocker Arm Geometry Tech
get your head flows, straw man headers, compression figured out then fill out this form
Street Performance | Jones Cams
Best HR profiles IMHO