ANOTHER small block question(318)

I'm looking at the Summit 272 cam. Only $60, so that looks good. The cheapest I found the 1.810 KB pistons was $335 for the pistons and the rings, which isn't bad, but I'm still looking for cheaper. I can probably also find a 600 Holley for not a lot, I'll have to ask around. All those 4 barrels my dad had lying around, and he sold them when I actually need one.