Throttle response?!?!

[RobbyMartin]

Originally Posted by 88Racing

Yes good answer!
Forgot about that one!
Also check the fuel pressure regulator and pressure at the fuel rail.
Being you own a 97-03 you have a cable TB and when I had mine I never had any lag.

Lars

I forgot to mention that I replaced the fuel filter as well and that didn't cure the problem.
A few years ago I replaced the fuel pump and that didn't change anything either but what I did notice was the fuel gauge reading would change. I used to get about 200 miles or more at half tank and now I'm lucky to get 175. At empty, i am lucky to get 290-300 when i used to get 325-335. What could be the problem?

As far as the Gryphon, I use my truck as a daily driver and I want throttle response and fuel economy. I rarely tow but if I do it's about 2500 lbs. or less. I never have a need to race it since its lifted with 35" tires. With that being said, what tunes should be purchased with a Gryphon?