Great to here some people besides me are building up this giants. I'm currently building up a 72 Caprice two door, with a factry 454c.i.d. I've most recently modified the factory exaust to a more staight and open design, to decrease back pressure.Most of my other mods are minor.Going to next add a nitrous plate with a 50-150hp boost.Trying to reach a eleven second run or better.