You are correct, I have done NO internal Modifications at all to reach that ET.Strapped for cash.I am pretty sure I know what internal Mods I can do.I want to keep my A/C so that means No pullies

I do alot of I-95 Cruising, so I can't really go any lower than 3.73. The Trans is New and shifts Very crisp,stock converter with a New Cooler.

@Big Bertha.---------What TPS setting is correct? and 160 is to low?Hmm? Ok.Thanks.