Performance upgrades on GT 500, I did some minor " Mods " to the car pulleys air box , throttle Ect.. I`m going too replace supercharger , I want too use that awesome looking polished Whipple 2.9L , has anyone used this type and what effect on performance did it have ?? Beaning polished not the boring black finish . I`m told it retains too much heat beaning polished and will lose performance .
