Alternator bracket?

[Freddy67]

Hello all:

Im getting closer to finishing putting a rebuilt 1978 350 motor into my 67 C10. My issue is finding a new alternator bracket. My old alternator bracket mounted onto the drivers side rams horn. I now have headers and I replaced the old smog heads with 1964 corvette heads, which have no mounting holes. is there a factory bracket that will work or am I looking at fabricating something? Or maybe drilling and tapping the head? (last resort!) Please see the picture and any advice is appreciated!