Hydraulic Roller - Xtreme Energy: Street/strip applications, 9:1+ compression, intake, headers, gears. 3000+ stall.; 288/294 Advertised Duration, 236/242 Duration .050", .520"/.540" Lift, 110 Lobe Separation; 2500 to 6000 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;
