Best bolt ons for a small block

I'm hoping to check out a car after Thanksgiving. Supposedly it has a recent rebuilt 318, it has a 2 barrel carburetor and dual exhaust. If it's what I'm told it is it would be awesome, what would be easy bolt on modifications? I plan on keeping it simple for now.

RustyRatRod's Guide To Hot Rod Bliss

Edelbrock Performer and 600cfm summit 4bbl. I did that plus a lunati 10200701 and detonated my 7 1/4 pegleg within 2 years.