what all is needed to do a b20 carb swap

[NOAHS88accord]

I wanna do a b20 carb swap using my a20 manifold, what all do i need besides the engine, axles, mounts, transmission, and wiring? do i need to upgrade fuel system? can i keep it auto or should i do a 5speed swap while swapping engine? please help me out on this, its gonna be my project for the next few years

[RCracer]

You will also need to make some supports for the a20a manifold.
The original supports from the A20a will not fit the B20a.
I used the EFI support (from the B20a) at one side of the manifold (by welding a small peice cut from the original a20a support to it)
At the othe side I made a support from peices of A20a support cut and extended to mount it onto one of the alternator bracket bolts.
Other than that it all fits nice apart from if you plan to use a A20a alternator the pully is too wide (I used mine but it was close to the chassis) and you will need to modify the mounting bracket slightly.