68 Valiant Hellcat Swap
By creating a rectangular insert for the firewall it made it much easier to fabricate in and out of the car when needed.
Although it may not look it, but there is plenty of room behind the supercharger for the air charge cooler sensor and fuel rail pressure sensor.
Once I was happy with the placement I tack welded the insert in place and then made a surround with a flanged border to complete the firewall.
Continued the top flange of the firewall straight through for a more cleaner look. Also spot welded the flange to the firewall like the factory would have.
By creating a rectangular insert for the firewall it made it much easier to fabricate in and out of the car when needed.