POL's tubular motor mounts????

[ecgate]

Anybody use the tubular motor mounts off of the Performanceonline.com. Im having a hard time tracking down the motor mounts for the bbc 68-71 style. I have the stands but I cant find the mounts unless I want to pay out my rear. Anyway Im running a bbc with headers and was wondering if anybody had some experience with this set. Was the motor mounted to far back or forward, any clearance issues with headers, ect.............?

http://www.performanceonline.com/196...RACKETS-16820/