Here is the notch I cut. It starts 2 3/8" from the rear tower bolt hole, and measures 1/2" x 6".
There is about 4 1/2" between the exhaust port and the frame rail.
Here are the hedders I am using.
Motor mount (drivers side)
And the motor in the process of finishing. Just waiting on a cam to finish it up.
Hope these help. Sorry for the size.
Dan