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They also feature a thick and rigid BILLET RAIL mounting surface
170" radial thickness AP™ steel
Small specks of aluminum
had more vacuum and consistently showed a 5-8 hp gain in a 1200hp 8000 rpm engine
Carburetor Spacers-CNC Tapered Size:4500-1"-Open Hole They also feature a thickReher Morrison's 1" thick carburetor spacers are CNC machined from 6061 T6 aluminum. These open hole spacers are tapered, ( funnel shaped), to create a venturi effect. This ram air effect increases the air and fuel entering the cylinders and provides a substantial increase in torque and horsepower. They are available for both 4150 and 4500 style carburetors. While providing more power on their own, these tapered spacers produce an even greater
