???273 Commando Question???

???273 Commando Question???

I just bought my first Mopar car; its a 66 Valiant Signet with a 273 / 180hp.
I'm going to the Mopar Nationals in Columbus Ohio next weekend.
What casting # should I be looking for on the 4 barrel intake?
Any other suggestion or info with the intake, air cleaner, carb, valve cover, distributor etc to ungrade the engine to a Commando would be a great help. Just collecting parts at this time, will do the internals when I have everything.

Thank,s Jeff