Butchn, remember the foams job is to give shape to the structural members. keep the LG rail in the same relationship to the D-section. and to give the fiberglass shape. if the foam breaks free of the stress bearing members they will begin to move in relationship to each other causing foam dust which I've gotten real good at finding. once found I Ca all jionts to close up any cracks in the epoxy in the joints. dig out all the foam I can reach and re refoam. as you no dought have found one needs to gain experience with this stuff. I tell everyone make two hole one to pour in ans one for pressure relief.

I've fit the G-62 engine to the box provided with the kit with blind nuts, then glassed it. pic's to follow.

Joe