Basically I agree with the above you really need to cut the tunnel and make a new one at least to the mount. The mount is not too bad to make, the firewall opening needs to be bigger, the area from there back needs to be taller and wider basically back to the mount crossmember. The lines are on the right side and not the left side as well. All in all if this were a 1200HP 3400# car on a small tire where shake, and gear ratio become a problem I would spend the time. If it is a bracket deal I would do a glide much easier or build a 727 with better parts.