@rocky posted:The popular wisdom on the 351C roll pin thing is twofold, the first is the stock roll pin is a spiral wrapped piece of thin sheet metal, instead of a real pin, and the second is that if the stock gear rotor pump hits small piece of debris it stops / slows for just an instant, placing a lot of load on both the pump drive shaft, and the roll pin.
Rocky
OK, but this is the same with all Ford distributors. I have not seen this issue with other Ford distributors.