Modifications to Offenhauser 1 1/2 carb spacer Thermoquad to Holley pattern ?

Heres the solution:
Im doing what Kim suggested, everything inside the purple box will be machined out.
You can see from the pics that it will be wide open. Possibly some dremel work.
The line down the middle of the box will
Where a small u shaped channel will be fabricated (on the ends of the north and south) to use adjustable sized fabbed plates of various sizes to experiment with the plenum divider.
The nitrous plates (adjustable) wont interefere, now Im going to use 75 jets x 2 for a 150 shot, The 400 to 500 stroker I will use 150 jets x2 for 300 hp

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