I may have missed this but is your gauge liquid filled ? ...on my car the gauge was reading all over the place until I drained the fluid out of it just throwing it out there
71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it. 67 Belvedere that worked it's way in the 10's
