318& 360 la

Mattax said

Your best bet off the shelf may be the Chrysler built Mopar Performance/Direct Connection distributors. Sometimes these are available used but you won't know if they've been mucked with. You can ask Halifaxhop what he has, and/or look in the for sale section to see what he has listed. Howver he has more than is listed.

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Forgot to mention that with the MP distributor, you can not use the factory '73/74 ignition tune up specs.
a. If the OSCA valve is still connected, bypass it.
b. Set the 360 initial timing so it is something around 10 to 16* at 650 rpm, and the 318 may be fine with as little as 5* at 650 if its not been cammed up.
or/ follow the directions in the old MP kit, then live with the idle timing where-ever it lands. I posted a copy of those directions at the end of my How To article about adjusting vacuum advance.
c. Carb tuning for idle. For a holley style carb, see the posts here about keeping the transfer slot exposure within its working range at idle. I've posted photos of that here on FABO.