Just go find one from a 250-292 late model Chevy inline. Now, very important! Make this new donor HEI fit your motor EXACTLY like the stock unit did. This means length of drive into motor/fit to oil pump, placement of the gear(you can flip the little gear over to adjust for location on shaft), plus you may need to turn down the housing to eliminate the collar that allows for depth. Patrick's/Mallory units uses a "clamp on" stop, adjustable for depth etc.
Also the HEI's come with either remote coil or coil in the cap, either will work. Or you can go first cabin and get the MINI HEI from Langdon's. Either way you'll be happy!!!!!1
