Here's another what will she run, for you.

13.6-13.7

Put a better intake, carb and some more converter in it and I bet it could run high 12's.

Hypermites build from another thread:
Combo is, .060 over 318, home ported 360 "J" heads, stock valves, Eddy RPM intake w/Holley 650 dp. Comp 1.5 roller rockers, MP. 280-.474 cam. Hedman headers w/2-1/2 pipes & flowmasters. 9 to 1 cast mopar pistons, stock rods & crank, windage tray, 904 tf, w/Trans-go stage II valve body, 3.91 sg 8.75.

Hypermite has, IMO, a better intake and carb on his car. That's probably good for 25+ HP over the 625avs and performer intake. Better cam too, that won't be as soft on the bottom. The 474 outperforms the 508 in almost ever part of the RPM range except the last 500-800 or so. 474 is a much better cam for a hot 318.