We have a very stout 270 amp unit for that vehicle. It does over 165 amps at idle, and has great durability for the street. It features our top of the line solid copper rectifier, oversized positive and negative output studs, and an overdrive pulley. It is made in the USA, dyno tested, and comes with a 1 year warranty.
Here is a link to it on our store:
MechMan.com - 250 Amp Alternator (30721161-00)