LS1FJ40
SILVER Star
Voltage dropping @ a stop/low RPM is normal when running your lights & heater blower on high. It's not uncommon for the lights to dim & the blower slow down when you're coming/come to a stop. If it really bothers you an upgraded alt. is the only way to fix that situation. It doesn't bother me enough to invest the time/money into the Seq./Tundra alt. & bracket & belt & ????
It's not a top priority for me now but will get done this spring. I'm really leaning towards completely rebuilding my 3FE when school is out in May. 233k on the clock and all original seals and gaskets. She leaks a little bit...out of EVERYWHERE. I have my summers off so I'll have the time and I think it'd be a fun project for my son and I to do. If I do that it only makes sense to do the @Photoman alt mod and have the piece of mind.