1966 BARRACUDA BUCKET SEAT MEASUREMENTS

Hi guys - need some help.

I'm looking at putting Procar buckets in my '66 and I need some measurements checked.

They have floor frames in 2 sizes for the '66 buckets, but neither matches mine.
The bolt spacing side-to-side on both driver and passenger seats in my car (at front of seat) is 14".

Anybody able to measure their spacing so I can tell if my car has an oddball setup or if Procar needs to re-template?

thanks in advance