While on the topic of distributors: 029100-2370 distributor off of an F engine (SOR says the engine is a '72, but it comes out of a 1967 FJ40). I have a Manafre HEI unit with vacuum advance in the engine now, but not convinced the accel curves are optimal (probably for a 2F?). Is Pertronix the best upgrade for these still available, or is there a better path available in this day and age? Vacuum retard/advance options?
View attachment 2810120
View attachment 2810121
That's a vacuum retard distributor that can't be modified to vacuum advance.
If you want to go with a Toyota distributor there are many options, both points and electronic.
Early F engine distributor - can be set up with two different types of points (see my Post #26 above) or with Pertronix. For the points options, you can use either a condenser (internal or external) or a 1/75 through 9/77 2F coil/igniter. For Pertronix, you just need a coil. These are vacuum advance.
1/75 through 9/77 2F engine distributor - can be set up with points, Pertronix, or Toyota electronic ignition (I've recently upgraded several of these from points to electronic ignition - (
Distributor Tech - '75 through '77 Conversion to Electronic Ignition Using Toyota/NipponDenso Parts - https://forum.ih8mud.com/threads/distributor-tech-75-through-77-conversion-to-electronic-ignition-using-toyota-nippondenso-parts.1240137/). For the points options, you can use either a condenser (external) or a 1/75 through 9/77 2F coil/igniter. For Pertronix, you just need a coil. For the Toyota electronic ignition you need to use a 9/77 through 8/87 2F coil/igniter (or one of several other Toyota coil/igniters). The 1/75 through 8/76 are vacuum retard, but can easily be converted to vacuum advance (I've converted several of these, and I've sold several new NipponDenso advancers here on MUD for those who did the conversion themselves). The 8/76 through 9/77 are vacuum advance.
9/77 through 8/80 2F engine distributor - these have Toyota electronic ignition, you need to use a 9/77 through 8/87 2F coil/igniter (or one of several other Toyota coil/igniters). The 9/77 through 1/79 are vacuum advance and retard. The 1/79 through 8/80 are vacuum advance and have a second diaphragm for high altitude compensation. Any of these can be modified to single diaphragm vacuum advance if the original advancers are bad.
8/80 through 8/87 2F engine distributor - these have Toyota electronic ignition, you need to use a 9/77 through 8/87 2F coil/igniter (or one of several other Toyota coil/igniters). These are vacuum advance and have a second diaphragm for high altitude compensation, and can be modified to single diaphragm vacuum advance if the original advancers are bad. I've even converted one of these to points for another MUD member. They use a sealed bearing at the top of the shaft, all earlier F and 2F distributors use bushings. A dented side cover is needed for these.