Chainsaw Repair

Poulan 3500 60cc picked up today up north while helping son move. Still has 20" banana nose bar and poulan sticker bar cover. Front exit muffler cover. Came with 2 bars and 8 chains. 1 chain marking I never seen before. Need to get pics. But had 880 on it.
Could tell low psi so pulled muffler and slight scoring had started. Appears to be from crracked impulse line. Which is common on these series of saws.