Computer location
Here's what I'm doing, and "what you see." the key is the "new" cowl vent
At top is an aftermarket fuse panel "pretty much" in the stock 67 location. Below that a relay box out of a Jeep, actually, combined modules /relays / parts of two of them, and UNDER it sticking out the bottom is the Holley EFI ECU
The vent is a MUSTANG cowl vent box which has been cut off so the butterfly is all that is left. I'll use a short cable just like the Mustang / B body vents did
It used to look like this, before cutting it down
You can say what you want about using Ferd parts but this created a LOT of room under there.
B body boxes I don't think fit
Believe it or not, with very little effort, the kick panel will fit over the Holley box