TACH location

How do you like your sun tach 66340sedan....does it bounce alot? or does it read pretty accurate...i want a sun tach in my car since they look very retro and cool, but hear alot of bad stuff about them


It worked great with the MP ignition. I installed a MSD 6al box this summer, now the tach is not as accurate at higher rpms, is actually goes down as the engine revs higher. My friend says it needs to be recalibrated? I have another Sun tach that is identical to this one, it is mint and almost brand new, I may try that one. I love the old vintage tach for my look, I hope I can get the Sun to work.