Question on holley 4150

then 6.5 should be ok............is this combo new ...just got it runing?....just asking because the print out says may 08..myself a would check the pv and record it.....a blowen pv should cause a noteable amout rich mixture from ide to off ide.....bad cruz performance ect....you may have 3.5 whow knows .....check... good luck..........