Ive ran E and B cams and have never ever liked either one of them, but have buddies who love them. In most all my mild 302 heads cam intake bolt on cars Ive run F cams, and love it. The cam has always been nitrous happy, and on motor Ive always been n the 12.00 range, and on the bottle(100-150) in the very low 11.20ish range depending on what kit was used. I think its Brent over on Turbomustangs that made over 1100rwhp with his F cam. I had a f cam in my 347 back in the day with 1.7 rockers and that car was running low 11s all motor. That old school technology may be that old, but it is proven technology. There are guys like Ed Curtis who can whip up great cams for guys and make them run faster and make more hp, But Ive also seen guys use his cams and loose hp and tq over there alphabet cams, and it took Ed several trys to make it right. At over $300 a cam, thats an expensive learning lesson. I know my buddy had a custom Grind cam made by Bennet that fucking sucked, and even Ed said wtf were they thinking making this pos cam. The car ran faster with an F cam in it.