Lean burn questions

[smythge]

I just picked up a 440 out of a 1976 New Yorker for my 65 Dart, it has no vacuum advance and 2 extra wires coming out of the distributor I am assuiming this is a lean burn setup. I am switching the ignition to a Mopar performance electronic and will putting a Edelbrock 750. Besides the ignition and carbs are there other difference in these motors or anything else I should be aware of?

 

[Roberson_Tech]

cast crank, low performance thin wall block.

 

[moper]

The only differences are the intake and carb, distributor, and controller. The Intkae may or may not have EGR and floor jets (big fittings in the plenum area of the intake), the carb is set very lean, may have cannister purge and/or fule tank vapor solenoids, and the distributor has no mechanical advances at all, and 2 seperate pickup coils (the extra 2 wires..1 is "start", one is "run"). The blocks are the same castings, but with better material, and the "thin wall" thing is just a fable. really. If it were me, I'd upgrade the cam while it's out, and replace the nylon timing gears/chain with a decent double roller too. plug the EGR, and I put allen wrench type pipe plugs in the floor jet holes, and they work well.

 

[smythge]

Thanks for the info, I am changing the intake to an Edelbrock performer and putting either an edelbrock 750 or a Holley and changing to the mopar performance ignition orange box with vacuum advance.