I already plan on redoing the whole firewall with 16 gauge. The previous owner got a little carried away with his drill n saws all! I’ve been following 55 chevy dave’s (Dave has some crazy good sheet metal skills) build n like the looks of the wheelbarrow trick. I’ll probably leave mine full width if I have room for the gas pedal. My metal fab neighbor also has a 2 foot brake I could use... so we’ll see which route I go. Was wondering what width to make it. I haven’t obtained my new power plant. May have a line on a 2011 6.2 L ... I’ll see if I can sell my current engine for funding