Not a smart a$$ question but have you worked with many Webers? We have them on several LSR Model A engines and they are the hardest carb to dial in I have ever experienced. Wouldn't attempt it without a dyno. To be fair once dialed in they stay tuned. Jon (carb king) can give you advice on this. Good chance you will have to fab a sheet aluminum intake and if no cast exhaust manifolds on the market then headers with 1/2" thick flanges and at least 16g tubing (14g better) will not give the usual header leaking problem---for awhile. Weber photos:

[img]https://i.postimg.cc/mhBpjJbn/IMG-3982.jpg[/img]

[img]https://i.postimg.cc/bsdTFj4m/IMG-3983-1.jpg[/img]


Evan