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Yes, this all-aluminum 5.4 is as powerful as it looks, currently sending over 1,270 to the feet. Boost comes from twin Precision Turbo 67mm scrolls now, but these will soon bow out in favor of Precision's billet-wheel 76mm units. As if that wouldn't suffice, a nitrous kit will be added just for giggles (vague pun intended). Actually the giggle gas is intended to help spool up those larger turbos and launch this Shelby into the 6-second zone.