65/66 w/351w--Can I add PB?????????

I would like to add power brakes to my car BUT it has a 351w installed.

After doing some preliminary measurements with a stock 65/66 booster/bracket, it seems that the valve cover of the 351w will interfere with the 7" booster. SOOOOOOOO my question is:

Has anyone put a PB booster on a 351w, manual transmission (stock z-bar), 65/66 Mustang??????

How about a pic or a link if you have one?

Thanks in advance.

Dennis