Intake porting/blending

This will be on my RB Super Victor Max Wedge Port with 1250 Dominator carb. I’ll post pics of the mismatch. Idk the first thing about porting. I know I don’t want to be cutting or welding on/in it. More so looking for advice. Motor is a 543. 11-1 compression. .625 lift roller cam. Indy SR heads. I’m not sure the intake will be the choke point. The heads may not be enough to be able to feed the motor. Thanks. Kim

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