injected or carbureted?
Keep in mind that the pump must be able to provide adequate pressure to overcome the boost you're running. 7psi plus 15 boost referenced psi = 22psi. Most carbureted pumps can't provide that. Also, follow your flow reading on your pump at that pressure. The GPH plummets as pressures go up. Don't go cheap on your fuel system. I always go overboard on hose size and pump capacity, that way if I want to step it up, I'm not spending even more money to redo everything.
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