Motor mounts

I am in the process of buying a 1965 barracuda, I will be installing the QA1 tubular k-member and coil over conversion with rack and pinion. My question is on a 67 a body what is the distance from motor mount to motor mount? The reason I ask is I have a 392 with 6 speed I want to install but QA1 only sells gem3 mounts for the 67 up k- member kit. If the mount distance is the same there is no reason the mounts will not work in the older k-member. I understand modifications will need to be made to inner fenders for fitment of the heads.

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