^ exactly. I was never able to see what JUST the cam gear did as I added the header and SAFCII at the same time and never had a baseline. My most power was made at -6 degrees (retarded). The difference from -4 to -6 degrees was maybe a 1/2 hp or 1 hp I don't remember exactly. It was a little over 200 rwhp on a mustang dyno w/ PLP-SFI Intake, Greddy Evo II cat-back exhaust, toyomoto header, titan exhaust cam gear to -6 degrees, safcII tuned. I never really noticed a difference in power with each individual mod because I got used to them but as a whole, it was definitely a fun car with all the collective mods.
SOLD: 2002 GGP IS300 TURBO w/ AEM EMS - 301 RWHP ; 326 RWTQ @ 7psi (Mustang Dyno)
Modified Mag Full Feature (March 2008 Issue)