I think....
I want to say that back than I paid around 2500 for what I had installed: JBA shorty headers, pullies, new shifter, custom tuning done on the dyno. I can't say if I paid to much or not all I can do is attest to the quality of the work that is done. Everything was perfect! They give you a print out at the end of the tuning to show you your HP gaines. PHP works extremely close with Ford, I saw what I believe is todays Cammer engine(in early stages of developement) before it even was available to the market, Paul had it in a 2000 Cobra R and this was back in 2002. He was testing the engine for Ford. Anyway good luck with your decision making.