MSD E-curve Distributor Set Up???

FWIW, I run a FBO recurved mopar distributor with 16 inital, 34 total mechanical, and 12 vacuum.

Starts easy, idles good (would like 20 inital, though!), and the ET/MPH (best of 12.003 @ 111 mph) are best at around 32 to 34 total.

The Vacuum is great for cruising and highway. With my 408, a well tuned Thermoquad, 3.73 Dana, and a 727 witha 4200 stall convertor, I would routinely get 14.5 mpg. Now, with the switch to a TKO 600 with .64 overdrive, I have gotten as much as 24 mpg. So, IMHO, the vacuum advance is great for economy. Mine likes it, and I can definitely tell when it is disconnected. And once you go WOT, the vacuum drop to close to 0 anyway, and no vacuum advance.

Oh, and I've been looking at that same MSD distributor for some time, just have not been able to rationalize it. Yet...

Sounds like your Distributor is not set up for a stroker. Sounds like you had that dizzy curved for a 340/360 and just used it on this one. Strokers like alot more Initial Timing than 16*. Reason I say this is I had Don curve diffferent dizzy's for different set ups and the one you are describing is for a Non Stroked motor. His Dizzy's done for a 410 of mine was Initial 23* with 11* mechanical "34* Total" built into it all in by 2400 RPM......I bet your car is pretty lazy down low.