Yes Idle Drives On The Street Fine At 100 Kph or 60 MPh Grunty as up To 3500 rpm on the street, Yes I Am Running a HVC Coil PN 8252 Just The Small Writing On The Coil base Says Only Use With 6AL Ignitions That Must Be The answer
Just grab a known good regular low performance old oil filled coil and test it. That what MSD said to try first. It worked for me fine. Then I went and got a MSD Blaster II