Quoted from adol75:It's for a Mustang GT 2011, she really wakes up at 3500rpm, I want to improve below 3500. I think the engine doesn't get enough air. I haven't tuned it at all yet, so I'll probably add an air intake too.
I’d deal with Lund (I used to deal with John Sr. when he was still flying helicopters for a pharma) but have done my Shelby tuning with VMP. They’ll have you datalog with the XCal4 and it’s pretty easy.
Like Titan said, I used to tune blown fox bodies with the old Interceptors. The new stuff has tons more capability with really good tuners. Lund, Palm Beach and VMP are the best to get a tune from.
Your trans has 1 in 5th so gearing would be improved with 3.73 or so but not so bad since you’re essentially gaining gearing with the 1 5th gear. And if you get a blower, you’ll want that current 3.31 gear if that’s what you have.
Good luck and feel free to PM if you have questions.