The 64 1/2 had a different hood and headlight buckets than the 65-66. The "bevel" that NOS_Notch was talking about is on the leading edge of the hood that is directly over the headlight bucket. The headlight bucket also has an indention opposite of the one on the hood. The Mustang Recoginition guide has an illustration that shows the differences.
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2000 GT --
Black, 5sp, Mach460, Bassani CatBack & X-Pipe, MAC Cold Air, 70mm TB, Tri-Ax Shifter
1966 Mustang Coupe --
Tahoe Turquoise, Pony Int, A-Code, C4 Auto
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scott@pearland.com