I saw those on ebay for 89$ for a 304 amc v8. They didn't have a GM hei cap though, it was different, probably a knock off of a MSD unit, maybe a hybrid of the GM and MSD???? Cheap enough, BUT you should be able to build a GM unit for that and have factory reliability if you do a good job.
Put in a Alt., the HEI pulls 20-30 amps, so you will not have much left to run other stuff. You can wire it into the original system pretty easily without cutting everything up if you want to keep it original.
Last edited by Fireballv8; 04/09/2008 4:39 PM.
