/6 spool mount K member or find V8 spool K?

I have a 64 dart with a 360 using schumacher mounts on a /6 K member and TTI headers. I did a quick measurement on the motor and it was pretty close. I could have spent the time and try to adjust it it a little better (lazy and wanted to hear it run). My headers do rub in a couple of places. I use a tie down bar also. Other than that I haven't any problems and raced it plenty.