Running Rich

[notch351]

ok guys asking this on behalf of my buddies 91 mustang. it has a new 5.0 engine with an e cam gt 40 heads and intake from an explorer a 65mm explorer t.b., paxton sn93 supercharger with fmu, and right now we are using the stock maf and 19lb injectors. set the tps, car is running rich idle is choppier then it should be also. and cant get the idle right. fuel pressure set at 38. any thoughts