Anybody go from performer to an rpm air gap

http://www.moparmusclemagazine.com/...dyno_testing_small_block_intakes/viewall.html

the old intake manifold shoot out....has a performer and air gap...


Edelbrock No. 2176
Type: Two-plane four-barrel
Rated rpm range: Idle to 5,500
Max hp: 451.2 at 6,000 rpm
Max torque: 452.0 at 4,100 rpm
Average hp 3,000-6,300 rpm: 375.9 hp
Average torque: 426.7 lb-ft



Edelbrock AirGap No. 7576
Type: Two-plane four-barrel
Rated rpm range: 1,500-6,500-plus
Max hp: 475.4 at 6,200 rpm
Max torque: 469.8 at 4,100 rpm
Average hp 3,100-6,200 rpm: 391.6 hp
Average torque: 443.7 lb-ft