MSD 7-AL with 2 step

Yes...there were 7C and 6C made ...been years....I have a msd 6c on the shelf i bought back in 1980...still works the last time i tested...

mds makes a low rpm module...that you adjust the starting line rpm with a potentiometer,,,it is set at 3000 rpm from msd...then each turn is suppose to be 100 rpm ...l think.....

anyway...I bought one...and it did not work very good...so I took it back....but as they say...your results maybe different...LOL