The Accel system on this engine should be fully sequential but it can be changed in the systems screens via a laptop, who knows what has gone on previously. I am presuming that the Roush engine is code protected so you will have to use this code to access the screens.
You can trim the fuel coefficient on individual cylinders against MAP and RPM, maybe there is a problem here, you can check this and alter it.
We have found that some exhaust systems require that some cylinders do require a trim particularly on "well silenced " systems. The cross over GT40 exhausts seem to follow the original 60's design but here we have an engine with a differant firing order to the original, could this have an influence on fueling, I don't really know.
The data logging needs to switched to record and then for a max of 22 minutes.
Mike
You can trim the fuel coefficient on individual cylinders against MAP and RPM, maybe there is a problem here, you can check this and alter it.
We have found that some exhaust systems require that some cylinders do require a trim particularly on "well silenced " systems. The cross over GT40 exhausts seem to follow the original 60's design but here we have an engine with a differant firing order to the original, could this have an influence on fueling, I don't really know.
The data logging needs to switched to record and then for a max of 22 minutes.
Mike