boost gauge

[1NASTYGN]

Anyone running an eletronic gauge? I have a MSD Razor and am not very confident of its readings.

 

[DOUGGN]

I am using an autometer digital gauge - 2 1/6 dia. blue digital readout of the actual number - reads -30 to 30 scale. - but since it is the only gauge I have I can't compare for accuracy. Autometer says it is a very good gauge.