Thanks HondaLavis.
I've already drilled six .25" holes, but you're saying I need 3 more.
Visually speaking, I can't add more holes, but I can make the six holes I have now larger. What size should they be?
At this point it's all guesswork, (I actually ovalled the holes out a bit with the drill since I was drilling into a 45 degree surface anyway) so I am going to leave it at that for now. once I get it running I will decide how it's working as we get it tuned up.
I can certainly drill the holes out larger if I need to, but the cool thing about this little mini-muffler is that it's made to be packed, so if I go too far and need to restrict it some more, I could open it up and stuff some stainless scrubby pad material inside to both quiet it some and to slow down the flow, so I'm not too worried.
Regardless of the tuning, it may end up way too loud to pass inspection anyway, in which case I'm back to square one; but hopefully it'll do the job.
I'm going to be welding a small 4" section of baffle into the connector pipe as well, so that should help, (That was Lancer's suggestion to me a while back.) and there's room in there to squeeze another 4" piece as well if I want to do that, so I think I have a few options here...
No matter what, I'm expecting it to sound pretty mean....