I'd like to know which is more accurate, or if it really matters here goes...
Electric or mechanical? Boost or Boost / Vacuum? I'm asking because i want to buy a boost gauge for a supercharged tc and i've heard varying opinions your help is greatly appreciated.

 

electric...mechanical is nowhere near accurate or reliable
and always...boost/vacuum...u can tell if you have a vacuum leak which usually causes really low idling and sometimes a stall

 

Thanks a lot!

 

no problem man