got one of each in the box, the small hei version and the billet one that uses a external ECU (msd)

both are made by Procomp Electronics, the one that uses the external ecu was in an engine running with MSD 6al...

have not use the hei version yet..

caps are available..red or blue..with rotor.

http://www.ebay.com/itm/Red-Cap-For-Chev...14b&vxp=mtr

Last edited by 70AARcuda; 10/03/13 12:58 AM.
Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)