I have a '96 SS with a vortech blower and MSD 6btm ignition.
Has anyone ever had the experience when driving that the RPM gauge starts bouncing around then sometime goes to 0 but the engine is running steady??
Then the car turns over but wont fire up then I'll come back 2 days later and it starts first crank.

I disconnected the MSD and went back to stock nothing has changed. Went out and bought a new ignition module for $100.00 still doing it.
Drove the car to work had to flat-bed it to my mechanic that cant make any sense of it because the car started and ran fine the next day Than wouldn't start again when I went to pick it up. Intermittent problems are the worst,l any suggestions??? I know it's some freaking wire or component thats faulty
but the car is mint with no corosion.