Russ, the software in using to draw these 3D models is Solidworks and I can slice these along there midplane axis and create the patterns for all the top external and internal cores and also add the shrinkage to the drawings. Then I can import these native Solidworks files into my BobCAD-CAM software and generate toolpaths to actually make the patterns from these 3D models. Funny you mention our "Blue Flame" project, I have almost gotten that one whooped! I also have a Slant 6 EFI intake done also for those guys, so I guess im the new intake manufacturer now. I sat down and drew that 4 BBL Chevy version intake in less than 2 hours. Since I already had all the dimensions, I thought that was a pretty good use of time.
