Your symptoms still seem like an RPM signal loss problem, not a timing tuning issue.
Originally Posted by rel3rd
Does the Data Monitor (display) lose the RPM value when it stalls or almost stalls?
Yes, it has a Base Timing Table, not just three timing parameters (Idle, Cruise & WOT).
Hopefully, the Sniper software allows a slower curve to be dialed in.
If it were my engine, it wouldn't have that MSD distributor.
Ironically, it also acted up yesterday WITHOUT timing control, and everything back to mechanical timing, as it was for the last 3 years. The only difference? I used the adjustable rotor, and phased it in...car bucked, popped, kept wanting to stall, etc. Swapped the stock MSD rotor back on. Instantly ran great again?
May God's grace bless you in the Lord Jesus Christ.
'78 BRONCO: 508" stroker, TFS heads, Dominator MPFI & DIS, cold air induction, dual 3" exhaust/Magnaflow mufflers, 100HP progressive dry direct-port NOS, A/C, Lentech Strip Terminator wide-ratio AOD, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, custom traction bars, 4" lift, 35" mud tires