Well got around to getting under the GP today. The collector gasket that was there was virtually gone. The whole lower piece was blown out and it came out in pieces. I cleaned up the surface and threw a Percy's Seal-4-Good soft aluminum gasket on there with copper rtv. I'm letting it setup now, then I'll give it a try. This is my last ditch effort before having the area welded and a new flange installed a bit further down the line.

Also, rotated the torque strut mounts' bushings for the engine has less give fore and aft. I hope that fixes the issue with the collector flange banging the exhaust tunnel during reverse.

Not sure where to go after this. Trying to knock out some things that cost little to no money, but I haven't had time to work on.