twin carb manifold fabrication?

[79rolla]

hey iv been looking for a twin carb manifold for a wile and am ondering how hard would it be to make one for myself? any catches or things that i need to know befour i try and screw up
its for a 4k

[ChaosAD]

fit a 4ag then u can buy my manifold

[79rolla]

haha... NA
lol when the 4k comes out a 3sgte is going in
no 4ag lol