Here is the e-mail I sent you, but it was returned as 'Undeliverable'....
*I was wondering if you had a 'TR' type of upgrade for a SBC?*
Yes, there is a set up I use for the older SBC's with no fire wall clearance.
Use a MSD 'Cap-A-Dapt', P/N 8420.
The kit consists of...
A cap adaptor. Adapts the short Ford style cap to the GM Points style distributor.
A Ford V-8 Distributor cap.
A rotor that will work with both, and is adjustable for rotor phasing.
Larger very well designed cap and rotor (MSD's version of the Ford V-8 cap is the best we've ever tested), good (HEI Style) terminals, remote coil, NO MODIFICATION of the distributor, reasonable price, and will fit even the tightest fire walls, any Ford V-8 cap ('75-'86) will work...
This configuration will require an MSD rotor, P/N 8421, and MSD is the ONLY one that makes it, so carry a spare or two...
There is a lesser version of the same set up, (no phase adjustable rotor) MSD P/N 8445 that uses a custom rotor also, the extra rotors are MSD P/N 8423.
As for a Module, you can fire a MSD 6 series module with a set of points.
The points will last virtually forever, and by using the MSD module, the worn bushings affecting the points dwell is corrected, as the module will control the dwell.
These two units, combined with a modern E-core coil will just flat kick [censored]...
You will be able to fire accurately above 10,000 RPM with this set up.
It's a mild ("RV" cam) '65 283 w/Quadrajet sitting inside of a '56 CJ-5. It does have the fender well headers.
*The engine was supposedly built to withstand 8K, but the builder has since passed away, so I really can't confirm this. I've never run it up past 5500 myself.*
6500 RPM is safe for most SBC's and unless you know all of the EXACT details and parts used to assemble, conservative is better than being sorry.
*My goal is a strong ignition that works well up to ~7K. I don't have much firewall clearance, so I've been looking at the remote coil HEI systems.*
Don't waste your time, see above...
*Are these distributors any better than the MSD UniLite dist?*
MSD doesn't make a UniLite, Mallory makes the UniLite.
In my opinion, Mallory ignition products are junk except the plug wires, and they are only acceptable...
Even Mallory makes a magnetic conversion for the UniLite distributor now. (I guess they finally accepted defeat)
They use a totally brain damaged advance system also...
MSD makes a top quality, simple and easy to work on distributor, but it's EXPENSIVE!
And you don't need a billet distributor for a basically stock engine.
Don't waste your money on a custom distributor, you don't need it.
Unless you plan to sustain 5,500 RPM for long periods of time, or expect to rev past 7,500 RPM under full load, your stock distributor (fresh reman version...) will do just fine.
You may want to add an electronic trigger to your Delco points distributor, there is the PerTronics trigger, (Don't use the PerTronics complete ignition system, just the Flying Magnet Trigger conversion from points.)
You can also modify stock Chrysler parts to work just fine, and that only costs about $15, but you have to be handy with a file...
*Are there any better options?*
In my opinion, yes there are better options... (again, see above...)
1. I'd use a fresh Reman Delco points style distributor.
2. I'd convert it from points to Chrysler or Ford electronic trigger. (Cheap, Safe, Cost Effective, but Reliable above all else, and replacement trigger is at ANY discount auto parts store. (time consuming)
3. I'd use the MSD Cap-A-Dapt for your application. (I'd use the Phased Rotor, and I'd make sure I had an extra rotor in the glove box)
4. I'd buy a $12 weights and springs tuning kit for the distributor.
If you have trouble with the conversion to magnetic pickup, I can do it, but the cheap part goes away in a hurry like that...
*I know that you're not a real big fan of the GM HEI setup (at least for Jeep conversion), but in all of your years of building and testing, which seems to be a good combination for a good ignition system? *
Stock Delco Points distributor with conversion (see picture) and an MSD 6 series module with the MSD Cap-A-Dapt. You can also fire the MSD module with points with almost as much success.
We go racing with the mag trigger conversion all the time, and it works great up to about 5,000 RPM sustained or up to about 7,500 RPM drag racing. You going to join NASCAR anytime soon?
Reliable, dependable, easy to work on, parts at (except rotor and MSD module) at any parts store...