Hey guys, great site! Has been loads of help to this new Scout owner. I recently picked up a 1977 Scout II, (int. 345 motor, gold box, auto trans) I hoped to get it home, do a quick tune up and a break job and have it out in the field on my property here in southern Missouri, but I've had issues getting the thing to run ok. New plugs, wires, new gold box, water pump and I'm currently attempting to rebuild my carb. I've got the Holley 2 barrell 2210c. I pulled it apart using my IH service manual as a reference and realized that it is missing the power valve piston. The power valve is there, but the rod and spring are gone. Is this what is causing my plugs to fowl out? Also, where could I possibly find a power valve piston? If I can't find this part, what would be a good replacement carb? Thanks alot!