Re: '58 Four Fifty parts
Vern, Good luck with that motor. I had two of them for many years. They are long on low end power, short on speed and thirsty, and extremely reliable.
PM Joe Reeves and ask him if you can run them on a 50::1 gas oil mix. I think you can, but he is the expert.
If you need some used parts you might try Trixie's in Bayville NJ. They had a bunch of parts for the older Johnnyrudes. I think you can use the points from the old big twin motors, as well as the condenser. That motor has two sets of points, one condenser and a single coil. Look for the second set of timing marks on the dissy, since they are a bit out of the way.
I built a fuel recirculation system for my fat-fifty. I installed a brass, threaded hose nipple in the cap of a plastic pint 2 cycle oil bottle. I then cut a square hole in the bottom of the oil bottle and also cut a round hole the size of the fuel line in the bottom of the oil bottle. I installed the cap on the oil bottle, wired the bottle (inverted), next to the intake screens and installed the fuel drain hose onto the hose nipple. I ran this to a seperate fuel tank in the boat. Now find the hose that runs from the bottom of the intake manifold, behind the fuel pump, to the starboard side of the engine. Unhook the hose from the side of the motor, cap the brass nipple on the motor, and route the hose into the oil bottle where you cut the round hole.
Now as the motor runs, it will pump gasoline vapor and liquid gas and oil into the oil bottle. The motor will suck the vapor in and the liquid will drain under gravity into the tank. Now you won't blow up.
That's just what I was looking for. 
