Join Date: Jan 2004
Location: Winston Salem, NC
Re: hei to msd box/ ex.coil
If you are running a fairly mild combo with no NOS or boost then I would not expect an MSD to pick it up. In fact, if you had asked me last month I would not have thought an MSD would ever pick one up but I found out different. In my boosted application with water/meth injection I picked up a tenth just by adding the MSD. Why? Because my factory ignition could not adequately light the fire when the water/meth injection and boost came on.
69 Camaro, 3650lbs., 400ci, TH400, Coan 10" converter, 3.50 gear
D1SC, pump gas, 9:1, 10 PSI, Water/Meth injection
1.325 60', 5.988 @ 115.4 (carb)
Switched to Super Sniper EFI 2019