the intake bolt angle changed somewhere thereabout (65-66) so confirm your intake choice will fit the heads. Pertronix II. Eddy 500 CFM (1405). #1 #1 you need 68-70 340 HP ex manifolds with a mandrel bent 2&1/2" ex front to rear. '92/early 93 magnum ex manifolds are a good choice (that year has 2 & 5/16" outlets and either of these 2 choice MAY need minor mods for the DR mani to fit. what vehicle are we dealing with? EDIT the P has special needs (nothing earthshattering) and a dist with tight bushings AZ has em for cheap or Lowes has the bushings and Grainger sells the adj 15/32-17/32 reamer for cheap. Just me I'd keep the points & get it up & running then go from there