just installed my 275A singer alternator, took off the small pulley that came with it and used the bigger one that also came with it and my stock belt.
install went fine, except my voltage isnt right.
when im driving it reads 14.9, but when i stop at a light it goes straight to 13, and slowly decreases to about 12.4
also when in park it sits around 13ish
battery is a new red top that i bought the other day, and it reads 12.7 when engine is off. light wasnt on before alternator upgrade, and new battery was put in prior with no problems
vid of alternator running,seems to be very hot too