B&M Converter is bad

fishy68 said

The article says they welded up the slots to .480" long and that gave them 20 degrees of advance. That would be real close to right for you too. .470" would probably perfect so somewhere in that range will work good for you.

Click to expand...

I don't know what article you read but that is NOT what I read. The 480 they mentioned was the BEFORE and as it happens the mechanism was stamped 15* distributor (30 at the crank)

http://www.moparmusclemagazine.com/...opar_electronic_ignition_system/photo_13.html

A chart a few of us have found floating around: It is important to understand that this is DISTRBUTOR degrees which is 1/2 what you see at the CRANK

Modifying advance slots
degrees / slot size
6.............. .340
7................355
8................375
9................390
10...............405
11.5 ...........420
12...............435
13...............445
14...............460
15...............475
16...............490
17...............505
18...............520