440RB INDY DUEL PLANE OR RPM INTAKE HELP

I`m not an expert, but the indy dual plane is bigger inside the runners from what I understand, but has terrible core shift, and may even need to be epoxied or welded up to fit right. Still think I`d use a single plane w/ fuel inj. . Loosing a little torque down low makes them very streetable, mine is, and its bigger and hotter in every area than the one u duno`d. A bout the same comp. ratio tho.