Amp meter

[christensen]

I installed a 4.0 1999 Explorer motor with a 90 amp alternator in my 1985 Bronco II. Had a 2.8 motor with a 30 amp alternator.
I want to use my stock amp meter, does anyone know what size shunt or resistor to install to keep from frying my gage?
Thank you, Ted

 

[BRUTUS_T_HOG]

it shouldn't affect it, the alternator will only put out what is demanded