Ms462 base gasket delete

[Bigmac]

Kind of wish I would have went 1/4" or 5/16" wide on my muffler mod opening. Felt like I lost some torque but the timed cuts say I picked up a full second. Cutting 18-20" elm in about 11.2 seconds. 20" bar hand filed semi chisel. Wish I could upload the video.

Base gasket delete ended up .020 on the dot.
Added second port on the muffler 3/8x1"
Took .017 off the flywheel key.

You could always make a reduced opening plate and bolted on over your screen and underneath their deflector to reduce the size of your second port. A square piece of sheet metal with an oval hole cut would work nicely