Yeh, a reliable..... at least “fairly accurate” tach is necessary for trying to gauge how well certain aspects of the car are working out. Well...... unless you have a data logger.
The go-pro...... the poor man’s data logger....... Aimed at the Tac will answer some questions.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
