okay so ive searched but no answers to my question...im goin turbo and i recently just bought a 99 y8 intake manifold...it has no holes for the iacv to screw into on the back of it...any fixes for this problem???and also i forget where i heard it from but there are four holes one on top of each injector...whats the purpose???i remember someone telling me to jb weld those holes...is it necessary??? any help would be much appreciated..thank you