I know exactly what you are looking for it took me along to find this place they should be able to help you out on the spider injectors here is the link http://www.fiveomotorsport.com/impor...uel-injectors/ and I would definately recommend street and performance electronics manifold spacer to get more air through there, http://www.streetandperformanceelectronics.com/vmax/ but ultimately the marine intake is the way to go for the 4.3!