I think what powertrip was getting at is the Holley SD's manners are VERY similar to the Edelbrock Performer RPM and it will have more hood clearance. I've tested both manifolds and they are almost identical performance-wise even though one is a single plane and the other a dual plane. The old Torker probably isn't much different, especially in this application.
Close, I have tried every manifold available back in the day on a mildly built stock stroke 440 in a heavy B body, the Performer RPM fell short on HP, and was no better in TQ. Also, the RPM is taller than all of the old school single planes.
With 541 cubic inches you will have no shortage of torque, could use all of the air you can get, and have limited hood clearance, which makes the RPM the worst manifold you could choose. Makes me question Wilson's recommendation.
