Thanks- that's the math I needed to know that I need to learn. I'll touch base with Sean at SPR and swap out injectors. I may not hit 400FW but it'll come pretty damn close by 5700 if nothing scatters. I've studied and planned this build for 6 months. Fueling and tuning are the 2 biggest variables for success with my build and I know it. I had wanted to keep the stock TBI intake and open the bores but I'm headed toward the Holley 300-49 since it doesn't need to be bored to accept a 46mm TB and it has the center bolt holes at the correct angle for the early pattern SBC heads I'm using. Slotting the stock TBI centers was starting to look ugly for lack of room there without hitting the walls.
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