Are you using the newer Mopar two piece crossram intake? If so is it stock or modified some?
I use to tune and drive a stock cast crossram 426 Hemi motor, it didn't like big squirters at all (it did like either #32 or 35 squirters depending on the track elevation and outside weather conditions )Bigger squirters would make it hestitate at the hit of the throttle It did have a 8 inch 4500 RPM stall converter though I would foot stall it to 2500 to 3000 RPM and it would flash over 4300 RPM at the hit of the throttle As far as the new Mopar two piece crossram you might want to have someone who knows what to do inside them to fix the fuel distribution help you What I'm trying to say is I don't know anyone that has ran the stock new Mopar two piece make them 60 ft. well That or put a stick shift tranny in it, let the clutch out at 7000 RPM and shift it at 8000 RPM