Got her running, at least on 2 cylinders.

[moose3d]

Finally had time to get to work on my Blue Ice Cream truck (M725) I picked up this winter. BAtteries are smaller CCA 450's so put the battery charger on while I cranked. Fixed the choke cable poured a little gas in and used a gas can hooked to the fuel pump. Got it started and was running rough, guy I got from said carb needed rebuilt, seemed like it was not firing on all cylinders not that it was starving for gas. Got the IR laser temp reader out and found it was only running with 2 cylinders running. Pulled the plugs and 1 was completely smashed, another had zero gap, and the other 2 not sure. Went to NAPA to order a complete set of new plugs none in stock, had to order from factory @ $9.19 each plus $10 shipping, week to 10 days more wait. Oh well.

[Duce]

I got a set on eBay I think they were about that price. (frogot I had them tell your post joged my memory.) bet they would work better in the truck than the box. Guess I should install them & the heater parts, fuel filler tub, crank to breather hose, mods to finish radiator install, & , &....... U know the drill. Hope the plugs fix it.

[Don Cavey]

...

Went to NAPA to order a complete set of new plugs none in stock, had to order from factory @ $9.19 each plus $10 shipping, week to 10 days more wait. Oh well.

I just picked up a set of 12 new, Made in USA Autolite plugs from my local NAPA store (Ellicott City, MD) and they were $6.44 each. They had ordered them for me and there was no shipping charge. You may want to check into what they charged?