Starting to mock up the parts for my swap. I understand the Durango oil filter mount spout area has to be trimmed to clear the k-frame. Can anybody provide information on the areas of the funnel drain area that have to be trimmed, or is all of it cut off?

I may have an inch left of the ramp on my 45* filter adapter. It's not doing you much good, feel free to hack it down quite a bit.

Do you know of a problem if I were to cut it back to the filter gasket surface?

Shouldn't have any issues, its only there to direct drips.