I got a 1993 blazer with cpi, defrosers, abs, everything you will basicly find in your blazer... I put on four fog lights and i notice sometimes when i have my heater fan on, lights on, and foglights on my lights will all fluctuate and flicker slightly enough for me to notice. the guy i bought it from said he put an aftermarket 100 amp alt on it but im not sure if thats true. I herd that the stock alternators work better but im not too sure really. but id like to fig this out before i invest in getting roof mounted lights.

 

Do the 'big 3' mod, it will help alot.

 

Thanks Thogert, I will definatly get that done once i get time lol. I didnt ever really hear too much about the big three mod before, but then again i never really had alot of lights before. Thanks again

 

Mmmm.. 100 Amp is a little low.. I think Stock is 140, or at least mine is but it was changed at one point.

The big 3 mod wont help how much power the alt puts out.. It will only help how much power can be run through the wires. Stuff shouldnt be flickering like that. you might want to look into a bigger alt.

 

105 amp is the stock size. The big 3 will help get all of the power the amp can generate to where you need it, but if you have the $$ for a new bigger amp then of course that would be the best option.