One thing to check for.Mock up the headers on the engine stand.Some headers have clearance issue with the truck mount bosses on the sides.I had to grind mine down for hooker super compa.
Good point. Also, some people have had issues with the older style starter having clearance issues with the block, myself included. Get a later style Dakota starter (factory mini starter) to avoid this problem. You'll also appreciate the extra room you gain with it.