Opinions on MSD Ignitions

Me and a couple of buddies have ran them a lot in the past with hardly any issues. In fact the only times I can think any of us had a problem was one buddy that bought a E-curve distributor about 2 yrs. ago. Unfortunately it was for a car he was restoring and he didn't get the engine in until a couple months ago and the distributor was defective and way out of warranty. He was able to send it in and get it repaired for $112 total (with shipping both ways), but that's $112 he should not had to have spent. Oh yeah one other buddy had to replace his MSD6AL that he installed in 1986. That's pretty good service I'd say

As far as you leaving something on the table. I doubt you'd see much of an improvement at WOT unless yours isn't keeping up now. The multi sparks at lower rpm can smooth out the idle a little and help a little with fuel mileage and plug fouling. If you drive it much on the street losing vacuum advance is a detractor IMO. Vacuum advance helps fuel mileage and plug fouling so really you'd just be trading it for multi spark which I doubt will be any benefit. If I were replacing the distributor on a street car I'd go with one that has vacuum advance.