I have heard that if you hook up an original tach to an HEI distributor you will fry the tach. Any truth to this. I want to make sure before I install the tach. Also it may be possible to convert the tach so it won't be damaged. Anyone know what is done to the tach and who can do it.
I put an HEI in my 68 with factory tach and ever since then it has read 100-1500 rpm too high. I have taken the dash off and can't see anything wrong. Maybe my tach is off. Anyone else experienced this?