The RPM Edelbrock flows a lot more that the FLOWS do heck you can see right though them the alomst look like free flowing!!! They sound Great I think alest I think so
Hear it right here
http://www.edelbrock.com/automotive/...ds/MstngDB.wav
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1988 LX 5.0 3060lbs (full Tank) 14.90@100.2 On a Gtech Drivetrain: 2.73 Stock Gears (New Gears Monday 3.55), World Class T-5, Lakewood Bellhousing, Summit Adjustable Cluch Quadrant & Cable, Alumminum Driveshaft, Flaming River Manual Steering Rack Suspension: MAC Control Arms,Maximum Motorsports Front Grip Package, H&R Sport Spings, Bilstein Shocks
Engine: Steal Mounts, Ram air, K&N, Under Drive Pulles
Exhaust: 1 5/8 Un-Equal Length Mac Headers, X-pipe W\cats, Edelbrock cat\back
Co