My 340 Score of a lifetime!

RustyRatRod, that is what I did in my 69' 340 Swinger(4-speed), my 70' I kept the auto cam for my 72' van (automatic 727). Only problem I have been having is, I need a better accelerator pump for the "Stock" AVS, so I can truly use what I have. It has a leather plunger that I have tried to rejuvenate by soaking in Marvel Mystery Oil, but it only last for a short time. Any Ideas? I'm trying to stay away from the rubber ones.
You might try coating it in vasoline and working it in every so often.