Nice.
For a car running 13.7 at 102 (!) w/ bad 60ft times @ ~2.3 sec. That's awesome. Get the traction lock, good drag radials, 3.73s (although it'd be good if you got it dynoed b4 you got the gears to observe your exact power band) and you should get 60 ft times like 2.1-1.93 (est) and 1/4 ETs of close to 13.2xx-13.09x! Those are my educated guesses.
I would be shocked

if you couldn't get a 60 ft time better than 2.0 and 1/4 mile of better than 13.3.
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'79 Mustang Coup w/ 4" Cowl
Stock 5.8L, C4 w/ shift kit
Holley 750 cfm, Edelbrock Performer RPM intake
1 5/8" MAC shorty headers, Al driveshaft
2.5" Off road H-pipe, 2-chamber Flowmasters
Front: 225/60/15, Rear: 255/60/15 Eagle GT II
Weld wheels (15x6;15x8), 8.8" Rear w/ 3.55s
14 x 4” K&N air filter (getting the Xtreme setup soon)
"Red, thou art my companion. Hasten now your quickened metamorphosis to Green that I may conquer all who dare abide there beside me. May they be left thither behind burnt black." ---Fox Body