have a: 1994 camaro z28 5.7 LT1. Long tube headers- hotcam- 1.6 RR - msd 6520- 3 inch full exhaust to magnaflow muffler- 255lb fuel pump- stock fuel press regulator, rails and injectors.

Questions:
1. What is the max amount of shot i can run with the pump before i need a bigger pump.
2. On the jetting charts from the instructions the jetting size for 45psi is a bit different from the chart for the specefic cars on the website: 100 shot(52/31 52/30) 150shot (62/35 62/37). Which one do i have to look at.
3. They say nx sets its jetting very rich...do i still have to pull timing. Or if using race fuel (104 sunoco example) do i still have to retard the timing