Hello,

Here is a link showing the springs that I received from FBO and the springs (on the right) that I removed from the distributor:

https://drive.google.com/file/d/13aksB4cg2LTe8dLoFCf8a0NVA5YyaMDq/view?usp=sharing

I doubt either of the springs that I removed are the original MP springs that came with the distributor.


Here is a link showing the distributor (Mopar Performance 3690432):

https://drive.google.com/file/d/13XMQZr0XITR9Z8WuE95IskTb2UIXYICV/view?usp=sharing


This link shows the slick FBO mechanical advance limiter plate. The plastic bushing fits loosely in the middle of the plate and is part of the distributor. However, I don't think the loose fit will be an issue; it isn't that loose.

https://drive.google.com/file/d/13KgiKgf7I70SbtqlKcs8OkzJ_0k_yXGj/view?usp=sharing


link with the plate and silver springs (med tension) installed in the distributor:

https://drive.google.com/file/d/13zQj6KBaYeNfBGMYxOSvTkMCBoWlIjUQ/view?usp=sharing


FBO recommended the following:
- initial 20 degrees
- mechanical advance 14 degrees
- 34 degrees total, all-in at 3000 rpm
- hook up vacuum advance canister for an additional 10 degrees at idle/light throttle (need to test to see how much it gives me)

I figure we will start with all-in at 3000rpm, which seems really slow to me. I'm thinking more like all-in at 2500 rpm.

The car is a '67 Plymouth Satellite, 440, auto, 440-EZ heads with Modman intake and two 600 Eddy's. The converter seems tight and appears to lock-up at around 2500 rpm. It has 4:10's. Cam is hyd FT with .532" lift and about 235 @ 50.