I've been thinking about the distributor back in the firewall "cove" and that it will be almost impossible to work on it when the engine is in place. So I plan to drop in a stripped out old early Tempest 4 cylinder distributor. The Old 4 cylinder distributor is shorter and the cap is smaller in diameter than a V8. All I need is the body and the shaft to run the oil pump so I plan to do whatever I can to even get rid of the cap. So that leaves me without a distributor. I've also been worried that the BIG OL' Hilborn fuel pump may be way over the top for GPM than I could ever need. I'm worried a regulator may not be able to keep it at 6-7 psi. So I've been playing with a Pontiac aftermarket (Summit) HEI I have on hand to make it into a front drive, off the cam, distributor. But I want a functioning mechanical and vacuum advance for the street. IF, I can make it work with the turbos. I cut up the aftermarket HEI to fit on the end of the fuel pump extension but it'* counterclockwise operation makes the mechanical/vacuum advance system unusable. So if I have to run a locked out setup I'll run that, BUT, the body is longer and sticks the top of the cap right up to the little intercooler radiator. I picked up a Chevy HEI and with it'* shorter body (main upper body to the mounting flange), it would allow the mechanical/vacuum advance system to work (clockwise rotation) and it will fit about 1.5 inches farther towards the timing cover. You can see the difference in the pics.
The Pontiac HEI body.
The Chevy distributor.
The bases of the distributors have to be trued, and the extension machined to catch the distributor mounting flanges of the distributors. The distributor shafts will have to be shortened and machined to a hex to mate with the pump drive on the cam.
As you can see, I've pulled off everything from the front of the motor in anticipation of pulling the motor.