Wanting Help with a Muffler mod for Craftsman 3.7 61cc

[jtc16]

I have a Craftsman 3.7 61cc pro saw from the 80's. I'm trying to get some help from someone who has experience with muffler mods (this saw in particular or otherwise) so I do something that will for sure give me a boost cutting. I've already taken the spark arrestor out. I've read to drill holes in the front cover. I've read to grind slits in the side. Just hoping to get some tips and maybe some pictures to help me out. Thanks.

 

[IyaMan]

I don't think that's a common saw, but I'd be pretty sure you'll find someone here who'll have some input.

But this should probably be put in the "Chainsaws" section within Equipment Forums. ("Arborist 101" is for tree care)

 

[jtc16]

I didn't see the equipment forum before, thanks.