Hydraulic Roller - Magnum: Mild street performance, slightly noticeable idle. Needs 3.40-4.10 gears.; 270/270 Advertised Duration, 215/215 Duration .050", .500"/.500" Lift, 110 Lobe Separation; 1800 to 5000 RPM range; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;
