I have an 85 k1500 with a previously rebuilt 350 that i know very little about. I am planning my own rebuild as the old beast is kind of a dog.

Here is what i know i have goin on
350 with nice edelbrock 650 carb and intake
factory 193 heads
hooker comp headers with 2.5in straight pipes
sm465 granny low muncie
big ass goodyear 33's

want to install msd hei ignition, flathead pistons, and a new cam setup.
I am considering this:

Comp Cams K12-234-2 Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts

any thoughts?

I NEED HELP ON CAM SELECTION FROM YOU SMART GUYS THIS IS MY FIRST REBUILD
i drive this beast on the hwy everyday, as well as in town. i just want to boost power/ mileage to the old dog for around 2k.