So you only have room for 3 guages in your pillar..

[QWIKLS1]

Which 3 guages do you buy?

My picks by instinct (only) would be:

Fuel Pressure (top)
Pyrometer (middle)
Nitrous Pressure (bottom)

Note: My VCN comes with a AF guage.

Matt

[mshiznitzh]

Nitrous Pressure
Fuel Pressure
Trans temp

[GOT SPD]

Originally posted by mshiznitzh
Nitrous Pressure
Fuel Pressure
Trans temp

exactly my thoughts. A/F guages are more for looks than anything.

[Black02SS]

Nitrous Pressure
Fuel Presssure
Engine temp.

[Broken041]

I would want an A/F gauge on both banks, and then F/P for the last gauge. Once the N20 bottle comes up to temp/pressure, it should stay there until you spray. From there, just wait for it to build back up. Time how long it generally takes and add a little bit of time if you do not want to look at the gauge on the bottle. Plus with the A/F on a wet shot, you can tell when you run low on N20, cause it runs rich. So to stop my rambling, watching either bank to see if there is an issue would be key...so that is why I would say 2 A/F's. And then F/P cause it can drop at anytime.....or do some wierd fluctations.....and with that, you can see it there, real time. That would be a good indication of the choice of not spraying.

[coop5885]

nitrous
fuel
trans temp(if A4),
or A/F if you hook it up to a wideband

but thats a big if