NX jets. The 57/32 combo is suppsed to be a 125 shot as rated by NX. When I was tuning my car I actually went to a smaller 31 fuel jet and it made a little more power.
Do yourself a favor and get a bottle heater. They are a must to get the bottle up to temps and maintain those temps. I believe Holley(NOS) jets are rated at 950 PSI bottle pressure.