Alternator 150amp-best brand(s)?

[Oliver]

My 1983 c20 350/700r4 has a weak alternator...drops to 10 volts with air conditioning on.

I want to replace with a 150 amp reliable quality unit (future audio upgrades coming).

Anyone has suggestions on what brand is best? Hopefully from past experience.

 

[Frankenchevy]

Tuff stuff. Mine is 175 amp. Built in Ohio if I recall correctly.

 

[Oliver]

Where did you buy it?