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I just watched the video again and in your 2nd gear runs the tach is accurate. In the stock 3.2L 2nd gear at 60MPH is right around 5800RPMs I can clearly see your tach and speedo match up. So I'd say the tach is accurate for that run.
WARNING PLEASE READ: Stop pulling WOT runs! You have no idea what your mixture is at at WOT, if you really have a air leak and the mixture leans more than >13.5AFR you are in very dangerous territory. You know something is wrong do not push that motor that hard any longer. You really need to find out what your mixture is at.
What about the O2 sensor, have you unplugged it yet? If not please do so now and see if anything changes.
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Sal
1984 911 Carrera Cab M491 (Factory Wide Body)
1975 911S Targa (SOLD)
1964 356SC (SOLD)
1987 Ford Mustang LX 5.0 Convertible
Last edited by scarceller; 09-21-2015 at 07:01 AM..
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