I'm actually going to be using that pan on my '67 Dart/496. It's on the engine now, but I won't be dropping it in for a few more weeks. I'm running the single line external oil version, however. I don't see any major clearance issues, other than the drivers side motor mount perch, because of the external feed, but you shouldn't have that issue. The only other thing I did was took a small bit of material off of the lip of the K-member on the passenger side, after taking some measurements. It may well have fit with no problem, but it was easier to do it now just in case. I decided to keep and use my Proparts headers, after making some small improvements on them. They clear the pan just fine. I'll have more information if you need it, in a few weeks.