My first /6 build is ...

My first /6 build is ... finally done. :cheers::cheers::cheers: bored 0.30 over, polished and balanced crank, the head has been shaved 0.90 with large valve's 1.70 and 1.44 intake and exhaust. a comp cams 264, all new internals, fuel, water and oil pump's. a 2 barrel intake. I will be running dual exhaust system, which leads me to my first of two question's, has anyone fabricated their own dutra duals if so how. And my second question does anyone make a carb adapter for a holly 2300c to /6 or should look to trade for a carter bbd