Got the manifold Tom. Heading out to the hanger to check
it on the turbo engine. Looks great. The flange is
0.65 inches thick so .15 inch off that will reduce the weight 
a bunch. I can do that on my mill.
Also looking it it from the outside the left core box
runner could be .1 inch larger in dia where it mates the 
pipe. More suggestions when I get it on the engine.

Here is a six port flange overlaid. It is going to work
great with a six port engine. Even if it is wildly ported.
Plenty of meat in this thing for some wild porting.

You did a great job Tom. Thanks a bunch.

Paul Lamar
 
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