Elgin Camshaft E-1165-P; 2200 to 5400 0.488 in. 0.508 in. Hydraulic Flat Tappet for Chevy 262-400

Rough idle quality - (Note: Intake vacuum may be too low for power brakes, etc.) Good midrange torque in 3000 - 4000 RPM range. Good mid-range power operating range 2200 - 5400 RPM. Average fuel economy cam not recommended for towing. Increased compression ratio best, 10.5 to 1 or 11.0 to 1. Some engine modification required. Use manual or automatic transmission with high stall converter. Recommended spring pressure 120 lbs. for valve on seat; 300 lbs. for valve open. Axle ratio at 3.90 to 4.50 to 1 is best. Recommended for limited oval track.