Good bottom end isn't going to do much but it's nice to have the "insurance". I would shoot SpecialtyZ and email and ask for advice. Those guys don't want you to waste money and will steer you in the right direction. Greg told me not to worry about upgrading my turbo's even though I was willing to do it. Your intake, exhaust is good. I think your only option would be larger valves and porting (by someone who knows what they are doing) like EPR in Texas. No 500+ cams? The BDE gears are quite expensive for fully adjustable. Not sure if RobZ 62mm TB's are worth the hp/$ ratio. Tuning with e85 of course would kick ass.
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