Motor mount question

Motor mount question. I thought I had 318 motor mounts was going to use them on a 72 340. Driver side mounted with spacer but bisket stud was abought 1/2" from mounting hole. Engine is set right everythings square. I may have a truck mount. Anyway I cut the center out of the mount , thinking I can mount to insde of block mounts. Anyone see a problem with this. Mounts up fits good. I want to be safe
Sorry so long.

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I’m liking the yellow!