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Great info!
I know fuel pressure gauges are all over too.




Why are we paying so much for these guages when their accuracy is questionable

So if you find your tach is lets just say 300 RPM off..... what can you do about it? Is there a internal adjustment you can make



Accuracy sure is nice ... specially if you are trying
to figure your conv slippage rate... when I was working
and setting up test cars we had to test and calibrate
all the gauges and transducers before we put them
on the car and sign off on the calibration... we
had the calibration equipment right in the lab so
it was pretty easy... before that we had to take
them to another lab just to get calibrated and that
could take a week or better depending on where we
were in line of other customers