140 Amp alternator & amp guage

I replaced mine with a VDO 100amp Ammeter from a local shop. Here is the link to their site with the guage listed (VDO part# 190-905). I think it was around $35.

Hope this helps...
-Richard
http://www.nhspeedometer.com/cockpit_page2.htm

Phil, you have 3 choices (besides non-stock):
first, leave the gauge disconnected.
Second, add a 'shunt' across the gauge terminals. Then the current will split with most going thru the shunt and only part going through the gauge. This will decrease the gauge reading, but absolute numbers are pretty meaningless anyway. Mostly, you want plus (charging) or minus (discharging).
third- Gary Hall (and probably other vendors) sells a "fireproofed" amp gauge that looks like stock. It may have a built-in shunt.
If you go with a home-made shunt, use 8 or 10-gauge wire or a strip of brass shim about 0.060 thick x 5/16" wide & INSULATE the h... out of whatever material you use.