Oh, ok, that's pretty simple. I can get some 1/2 inch G10 and make some new blocks and it'll be real easy if I don't have to match the pulse pressure holes.
By "tap the backplate of the carb", you mean the plate that covers the diaphram, Right? And I assume it doesn't matter where on the case you tap as long as it's somewhere in the center chamber that gets pressure changes.

Thanks sooooo much, I know this can be a great engine if I can just get the bugs worked out.

Thanks again