Help! My 89 runs way too rich after mods

[SteeleSC]

Hi everyone,
I recently just finished my 89 Thunderbird Supercoupe and after putting it all together, I’ve noticed that the car runs extremely rich. It holds an 11.60 on the wideband at idle and 9.0 at Wot.
Here are the mods that I did to my car

Pulley upgrade Jack and supercharger
75mm throttle
90mm 6pin maf
Long tubes
Ported heads
Roller rockers
538 “c” cam
Ported intake
255 fuel pump
60lb injectors
Egr delete
Tuned

Here’s the weird part, when I make a vacuum leak in the car “on purpose” The wide band goes to 13.0 at idle. I’m just beyond confused and I would love some help.

( all signs point to maf but I don’t know why it would be bad)

Thank you everyone,
-Steele

 

[MadMikeyL]

Who did the tune? Between the different MAF and the much larger injectors, I’m betting the tune is incorrect.

 

[SteeleSC]

Who did the tune? Between the different MAF and the much larger injectors, I’m betting the tune is incorrect.

I purchased a tune from bill at Supercoupe performance, I was informed that the adapter was no good or my maf was not good, I have a BA 2800 SCT meter and I played around with it yesterday and now the car will not even start, it acts as if there is no maf there at all.