318 build #2 "cost minded" for the '74 Duster

My 10year ago 318 in my duster had Hughes 214/216 regrind, 302 heads, 600 eddy, headers, & 3.55s ran 14.2 and almost 17 mpg driving 180 miles back from the track.

Will you be using an AFR gauge for carb tuning?
You can cruise pretty lean w th right metering rods in it.