At 5 minutes to swap to an oem unit, yes, worth a try.
But if it uses the oem signal generator/pick up coil inside the distributor, like I said, I am not familiar with the msd unit, but I am guessing its an ignitor/coil package only, retaining all OEM elect. distributor parts,if so, I would swap that first if you have a spare.

fast enough to beat its own shadow