i got a 1968 472 i putting in my 1964 coupe and im having the pulley dilema i want to put hot rod air air conditioning on the motor its got the double pulley on the power steering pump and no smog air pump with a eldebrock intake i was wondering if anyone has done this set up i was reading into it quite a bit i know i need to probably get the 425 pulleys but should i get the double pulley on the a/c to match the power steering pump i know it needs a little extra help to run both or should the single work with using the 1964 power steering pump and just make a new bracket for the pump also i was curious about the holes on the heads for the smog crossover tube i know i could plug those but what about the ones that are open on the top of the motor because the eldlebrock mani does not cover them please could anyone with any type of info about this b s let me know i know someone out there that owns a caddy knows something thanks