Chainsaw Repair

Poulan 3450 330 two tone 54cc.  I took this saw on trade with a big parts lot. I allowed 130 trade.  It started and ran but not up to my liking. So I went through it.
 Put new oem echo line for impulse and fuel.  Replaced av that was tore. Fix or replaced missing or just not right parts. 
Has a dual port set up on muffler. Front exit and side. Inner baffle opened up. Appears to be a base gasket delete too. See red dirko there. Saw ready to cut. 20” b+c can go with it. $150 plus shipping.