Hey Ray,
Your stock fuel system can only support a certain power level which I'm sure is being exceeded if in present tune your car is making 380 RWHP. You will definitely need to go with larger injectors and MAF and possibly even a different fuel pump. So what Rob at Fordspeed is telling you is absolutely correct. There is another way to handle your situation send me an e-mail and I'll see if I can get permission to pass on the particulars to you.
Your stock fuel system can only support a certain power level which I'm sure is being exceeded if in present tune your car is making 380 RWHP. You will definitely need to go with larger injectors and MAF and possibly even a different fuel pump. So what Rob at Fordspeed is telling you is absolutely correct. There is another way to handle your situation send me an e-mail and I'll see if I can get permission to pass on the particulars to you.