Install a wideband sensor and gauge on your car and check out whats actually happening with the air/fuel ratio. its the cheaper route
Or get an innovate LM2 from INNOVATE. get the dual sensor unit.
Anything else is guesswork....you are playing with a HEMI I think it would be a good thing to have...mistakes on air fuel ratio can be expensive on that engine!
got one.
Well then it should not be too hard!
Have u got metering plates with removeable jets on the outboards? if not get some from Pro form.
Then after that is not much different that adjusting a Holley 4160 really. At least I have been able to tune mine pretty easy....but they all have been on stock displacement engines and witht the stock intake manifolds.
