I have an 85 2M4 that I am thinking of upgrading to the later style alternator. Has anyone done this on the 85 and if so did you notice any difference in sea tof the pants performance. I am asking because the Ogre suggested I do this instead of an under drive pulley.
Ive done the alternater upgrade. That upgrade is really for when your runnung alot of electronics, like an amp,driveing lights,sterio...an alternator most likely won't boost performance. It only takes one spark to ignight the fuel. You'de probubley get better performance by porting the exhaust manifolds,but thats not allways easy because the flange bolts can break.