nytrdr24
+1y
the 270 dur cam will work with the stock bottom end if the head hasn't been shaved too much, otherwise the valves will make contact with the pistons!! you will def. need either the 32/36 weber (with bigger jets than factory) or the 38 outlaw. where are you going to get to valve springs? no one makes them unless they are a one off custom set that i have found.
if you do run an elect fuel pump, remove the mech unit, and trace the opening in the head where it went, carry that to a machine shop, and get a cover made in the same shape, and a piece of gasket mat'l to cover the hole. you might also need a bypass type regulator (set @ 4 to 4 1/2 psi) even if the elect is 4 psi. that way you have a return for the fuel to the tank (there was a return on the mech unit).
hope this answers some of your q's