I am in great need of a new alternator for my 80 El Camino with the original 4.4 Liter 267 V8 (same dimensions as a 350). For some reason the vehicle keeps blowing headlights ( Silvania Silverstars) and I noticed when I turn the heater on high it is throwing over 35 Volts to the headlights which in turn is blowing them. I believe it has something to do with the regulator on the alternator but not sure and going to just throw a new one on.

Has anyone here used Tuff Stuff brand alternators and have good luck with them? I seem to have bad luck with faulty alternators out of the box or only a few months down the road and tired of it. Here is the one I am looking at: http://www.summitracing.com/parts/TFF-7127NI/
I know I can have a shop build me one but I am not aware of any local shops who do this kind of work so have to take my chances on buying brand new and going with a 100 Amp part.

Thanks a lot in advance for any info guys!