273 Engine set up I'm thinking of going with, let me know what you think

Edelbrock has a power package that includes:

Performer intake, Performer Plus camshaft 270 duration on both intake and exhaust with a 0.420 lift, and a 600cfm carb-electric choke.

Also I'm going to go with the Mancini Racing electronic distributor conversion with the orange ignition box, Accel wires, cap, and rotor.

A set of Forged 2v relief 30 over's 10.3:1 Speed Pro pistons p/n 2316f30

Any ideas of what this may bring in terms of horse power?

Is this a pretty good set up, any suggestions?