cool car and great story....seems like alot of people on this forum have modified 1985 Corvettes.
FWIW, I dealt with the '85 ECM for about 1 month until my maf went bad (happened while heading out for a saturday night of fun...only about 2 miles from home) so I limped the car home.
After finding out how much a new maf cost, I swapped in a GM '7730 computer with speed density air monitoring so I use a map sensor versus a maf sensor.
The conversion cost less than a new 85 MAF sensor.
Mine is a 85 vette, 357 c.i. (on 2nd rebuild by choice), ported afr 190 heads, comp cams hyd. roller retro fit cam, hooker long tube headers, tpis miniram, holley 58 mm throttle body (mabey too big but it was left from my super ram combo), ed wright chip, Ford 24lb svo injectors, etc, etc, etc.
Even with the auto tranny & 3.07 gear the car is still a beast as I can easily spin the tires from a stand still all through 1st gear and chirp into 2nd & such.
If you got any ?'s or such, shoot me an email as I am not on the computer that much.