Good luck Jason!
Small ride around the block, come home, shut it down, make sure it restarts on its own. Watch the gauges more than the EFI, when you get home look for hanging wires, leaks, etc
A little farther circle, come home again, shut it down. Try to start it it hot and let it cool and do it again. If it starts both times, go for a good run, but don't beat it, watch the temp and oil pressure and if it runs decent, don't worry about the EFI.
If it has oil pressure, stays cool, and restarts every time, it'll get home. These runs are about engine reliability, temp and oil, NOT final tuning, let the EFI just do its thing if it runs decent
FWIW, when I built my 489 and converted to the TKO-600, I broke in the cam on Friday afternoon, and Sat AM I drove from Yorktown, VA to Danville, VA (220 miles) in the fog and rain to the Shelby meet there. ZERO road time, but admittedly it was just an engine and tranny build, wedge to boot not SOHC, so not as complicated as yours.
However, after approx 450 miles after returning that night, that engine hasn't missed a beat.