I had good luck speeding up the water pump. March pulley's has what you need. You might have to shim the water pump pulley from behind. I modified some Chevy spacers
I am leaning towards getting a smaller (so it spins faster) water pump pulley. I see that March has what they call "High Flow" pulleys. Were you not able to get a pulley for a small block Mopar or did you just need to use Chevy spacers behind a pulley that was made for a small block Mopar?
