I don't want to buy a replacement engine wiring harness because I'd have to cut it all up anyway to wire in the MSD ignition, fuel pump switches, etc. So, what I'm looking for is a source for all the funky connectors used, to which I can attach my own wires.
For example, the oil pressure sender uses some strange spring clip (which has long been missing from my old harness, the stripped wire end had just been wrapped around the post).
The rather unattractive alternative is to cut and splice into the old wires to reuse the connectors.