A bit of Poulan progress
Converted my PP330 from the 'newer' style tank vent setup (with the duckbill sitting in a recess in the side of the tank, behind a sintered bronze plug) that requires 1/2 the saw to be torn down to service.....................to the 'older' 3000-3500 (and 3400-4000 series) style vent setup with the second line, plastic 'barb' fitting, and a duckbill inside the tank. Plugged the old vent hole (duckbill seat) with a sheet metal screw coated in Threebond-1194. Tank now holds pressure.
Drilled a 13/64" hole in a spot that looked to have been marked for a hole (maybe that's where the older saws had 'em). Put a duckbill valve on one end of a 'double barb' fitting from a parts Micro that I had laying around, and attached a length of 3/32"x3/16" fuel line.
Used a piece of fishing line to pull the fuel line through the filler hole and up/out through the drilled hole until seated. Should have taken a pic of the duckbill/line/fitting setup I guess. Didn't think of pics until the vent setup was already installed. Rebuilt the HDA164 carb.
Did a 'quick and dirty muffler mod on the saw a few weeks ago. Removed the inner 'tube', drilled some more holes in the diffuser, opened the outlet hole a bit (until my dremel stone died). Shot a quick coat of BBQ high-temp black and reinstalled the muffler. Last pic shows the removed tube set back in the can to show how much I opened up the outlet. From the factory, the tube is pressed into the can on the outlet side and welded to the other side for those that haven't seen one of these mufflers apart.
STILL waiting for the AV buffers, intake boot, 'early' style short (non stupid-looking) spike, and a few other bits that are on backorder (going on a month now). Wish the seller's site had correctly reflected the availability of said parts. I would have ordered elsewhere. Also waiting on the backordered clutch tool that I ordered through my local Husky dealer. Got tired of having my bench tied up for over a month............so I boxed up the damn 330 and put it in a corner until the parts feel like showing up....