So tonight I decided to set my Holley floats when all of a sudden the Camaro would no longer run (again), no fuel. This is my 2nd new Holley (manual) fuel pump... So I removed the pump, diassembled, and found the end of the pot metal arm that fastens to the plunger was broken again. I removed the fuel pump mounting plate thinking my rod is to long, and now I believe it is. It measures 5 15/16" long end to end and is a Comp Cams #4620. In reviewing the Comp Cams website this part number is for an Oldmobile Rocket Block. Anyone know for sure how long the stock SBC fuel pump rod should be?