Carter AFB's

I've got a friend with a boat that has 2 Chrysler 440's with AFB's and mechanical advance points distributors. We would like to upgrade to electronic ignition and are looking at the Mopar's electronic distrib for a little over $150 each. The only problem is that they are vacuum advance. So, the question is, where would I hook up the vacuum advance on a Carter AFB? Or, would I be better off running without vacuum advance? Though, in a boat it may be important as driving a boat in water is like driving a truck up a 20% grade all of the time.

Running a spacer plate that is tapped for a vacuum advance?..

Dave Brisco

Ok, I just didn't know if the weights were sprung differently between a vac advance and a mech advance distrib. The spacer plate is a good idea if I were to run vac advance.

Save your distributors, just replace your points setup with a pertronix unit, I have run these in three different apps and all do great **)

http://216.65.58.60/Merchant2/mercha...gory_Code=CHRY

Summit & Jegs sells em too

Marine distributors need to make good power from 2500 to 3500 RPM as the revs rarely drop below 2000 and never go above 3500. I want to go to electronic as you don't have to worry about water on the points or corrosion. We were planning on a pair of these: http://store.summitracing.com/partde...=DCC%2D3690432

:rolleyes: Uh.....The Pertronix unit is ELECTRONIC, as for the rpm range you set that where you want it with a weight & spring kit, click the linc and read up on the Pertronix. :)

i think anything with a ported vacum support will do if not try out proforms chrysler upgrades. there not that bad of a peice and alot cheaper, you can get them through www.ramchargers.com

Will the conversion work in a distributor that doesn't have dual points?

Any AFB I ever saw had a vacuum port on the front face, offset to the passenger side, for the vacuum advance. The Petronix conversion is the way to go, too.