I do not own a Mustang but I have several Ford small blocks in my cars. I joined here because I am stumped with some FI issues. My cars are 1927 T with a 2.0 Pinto, a 1933 Tudor with a 351 Windsor Lightening GT40 FI, a 1956 Victoria with the 345 5.0 crate motor. I recently sold a Monster Miata with the GT40 FI 5.0---yes it was a ball to drive. Look forward to getting some good advice and if I can help, I will.