I'm planning on dropping my fuel tank to clean crud out and going to change pump while im into it. What size should I run? Factory OEM? Future plans will be 306 with a trickflow topend (Intake heads, cam etc) and 24lb injectors maybe 36lb if i need it. OR AFR 185s. But right around 400hp is my goal and NOT forced induced. I don't want to put a low flowing pump on now and have to change it when I have my build done. I will be putting on a adjustable FPR also.