Just like learning how to save up money..............

it takes discipline............

to stick to a totally matched system for best results/happiness.

A single-plane Holley SD intake, 800cfm DP car and a the lumpy cam of the month isn't going to be real good on gas. And when a punk in his 302 2 barrel Ford runs away from you at a light it will just add insult to injury. More like 600-625 Holley or AFB, Eddy Performer and the cam mentioned here.............

The factory 335hp RR repro cam, or something similar, would be a better compromise that would still have a little rumble. Narrow lobe center cams typically, by nature, hurt mpg.

I know you've already made up your mind on the cam and everyone including the experts have tried to talk sense here but it just had to be said.

And I won't even get into the time wasted polishing the proverbial turd when it comes to used, but marginally, good shortblocks with recon'd heads. Done tried it, motor ran great for a year and then when to mud after that quickly. A good test for worn rings. Have fun.