Overdrive question

Looking for some advice
We have a 526 kb veney 10-71 superman,44 mag, lencodrive,990 enderle pump, collector exhaust. going from 37 % over to 41 - 44 % over, tune up is close now. 130 in loop 60 in main. What would be a safe pill change for this pulley change, to get us close.
Thanks

 

Hey Tony how are you? This my help you out. on my 10/71 Hi Helix For each 1% change to overdrive supercharger boost will change 0.32 PSI and require a change of 0.51% of available pump output if you know your fuel pump flow etc,hope this helps Vinnie.