I finally had time to do some work on the car today so I began looking at the pedals.
Here's a pic of my feet on the pedals and then one with my feet splayed so you can see the space between the pedal in relationship to feet size.
Attachment:
feet on pedals.jpg
Attachment:
feet splayed on pedals.jpg
I'm thinking that offset pedals may be a much simpler solution than trying to move the pedal assembly. While I haven't had a chance to search for any yet, I'm thinking I've seen pictures showing optional pedals.
Here's the accelerator pedal attachment. At the very least the mounting point has to be built out about 2" to make all 3 pedals align. Fortunately, while it feels very solid, it isn't actually mounted yet so nothing to undo. I'm sure it's the pedal from the Impala. I've read the CTS pedal is the one to get as it's the most linear, but on my CTS it is very difficult to make minor movements. On my ATS it just feels much more natural so I may search for one of those before I mount it.
Attachment:
accel pedal mount.jpg
Unless I were to raise all the pedals and the floor at that point to match the center tubes, moving it out over more to the center isn't a real option. I've driven cars with offset pedals and when you've got to do things quickly many times your feet hit the wrong pedal so I'd like to avoid that if possible.
But, while in theory the piece of wood shows you where the side of the tunnel console would go, I think that if I were to angle that side way towards the middle that would buy me a little more room and if I can find offset brake and clutch pedals I just might be able to have adequate room for the accel pedal without any major mods.
Here are some pics to show you the clearance issue I'll run into trying to move the pedals. I've got literally a finger's thickness of clearance between the clutch cylinder and a large round tube. Plus the gas tank is moved as far over to the passenger side as it can go. There's only about 1/4" clearance on the right side.