Anytime ur building gm motors with a lot of horsepower mercruiser produces it all marine engines are built for power and most of it will bolt right on your truck motor
https://www.ebay.com/itm/NEW-Complete-2007-Up-Mercruiser-4-3L-Marine-Intake-Manifold-Gen-2-888773T/142832330832?_trkparms=ispr%3D1&hash=item2141786850:g:W08AAOSwLwNbIWVm
And it's about the same price as the spider injector upgrade