I have a 1995 mustang gt with a 5.4 stroker with a votech supercharger. I am having issues with it spudering after overheating the motor. The car will idle rough and then once in closed loop while on the throttle the engine will miss fire and back fire with loss of power then come alive and repeat. Bank 1 is running lean.

We have swapped injectors
distributer
spark plugs
wires
plugged the egr
new upper to lower intake gasket
timing set to 10 ...

1995 mustang gt sputtering