For those with Autometer tachs......

Ok, so I had an Autometer 3 3/4 inch tach mounted in my car a few days ago because the stock tach is not accurate, and actually binds past 2500 RPM. I though my stock tach was binding due to a previous owners poor white-face gauge install, but now I'm not sure. When accelerating, my Autometer tach seems to really slow down past 2500 RPM when in gear, even when I really get on the throttle. The tach was wired to the coil, so both the stock and aftermarket tachs still work.

Can a tach signal strengh weaken over time? I've heard of tach drivers, but those are advertised as being for 99 and up Mustangs, I have a '94.

Any ideas?

Thanks.

Well, the car is not physically slowing down, just the tach needle. The stock tach needle won't go past 3000 RPM, even if I floor it while in neutral. And if it makes it that far, it'll stick till I drop the car back to idle. The autometer needle just seems to really take it's time climbing up past 2500 RPM. I have no clue what's going on, or maybe it's not the car and I'm just crazy. LOL