I also noticed the needle housing from two rebuilt kits are different from the original on the right with holes in it. Does one work better then the other? Or just clean up the original?
Thanks for the replies. I recently rebuilt the engine and carb. I have the truck running decent(starts and runs good, no loud backfires, chugging). She's runs alittle rich with an occasional pop out the tail pipe and notice the timing bb jumps around at times. I'm sure carb needs better...