Anyone have trouble with the Ames hood tachs and HEI distributors? I bought a New one from Ames this spring and have trouble with it sticking at 4k rpms. I called Ames and they said to check the ground. I ran a heavy gauge test wire to a solid ground but didn't help. They said the HEI may cause the problem as they're made for the stock distributors. They said send it in to be checked out, which I will do this fall, I told them I didn't want to drive around all summer with a hole in my hood. I have a DUI distributor. I know MSD has a tach adapter that some cars use. Anyone had this problem or any luck with the adapter?