CVF Racing GM Chev Holden 1 Wire Black CVF 140 Amp Alternator # B-GM-1WIRE-140AGM Chev Holden 1 Wire Black CVF 140 Amp Alternator # B GM 1WIRE 140A GM 1 Wire Alternator, 140 Amps, Black Powder Coated At CVF Racing our alternators are specifically designed to work with pulleys at low RPM so you can be certain that your alternator will charge throughout the RPM range. A lot of high amp alternators just by shift the RPM range higher to get more power at the expense of low end charging. (Kind of like a really big cam) Our