ahhh, i c. ya might be kill like on a cam only car, but if u hittin the 9’s i highly doubt that a 90/90 will over kill for you, as u will need that air. u can get them to also work wiht say ls6 or l76 intake manifolds, just have to do some drillin. East Coast i belive does a lot of those kind of manifolds, or just get the kit from pewter and just try to do some drillin