Is it true! An 8.8 swap in my 64 1/2?

[Fostang]

From what I know is that nope it won't fit. Too wide. If you had a 67' or newer. I was about to put an 8.8 on my 67' and I remember an older gent. who owns a mustang parts store telling me.

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67'fastback-Edelbrock carb,intake,cam,valve springs.Rhode lifters, CompCam rocker arms, windage tray,cerama coated headers,dual flows with H-pipe, modded c-4,tci stall converter,perma cool electric fan,aluminum water pump,griffen aluminum radiator,accel 8.8 cable,wide cap distriburator,magnetic pick up,v-matic hurst shifter,edelbrock performer nitrous, carter electric fuel pump,ignitor coil,solid motor mounts,magna racing suspension,poly urathane bushings,under rider traction bars, comp. eng. s