Description
Hydraulic Roller – Xtreme Energy Computer Controlled: Works well with ported heads, serious valve train upgrade required, needs 2200+ stall.; 271/279 Advertised Duration, 224/232 Duration .050″, .591″/.601″ Lift, 112 Lobe Separation; Adjustable valve train required; Must use bronze tip fuel pump pushrod when using high pressure or high volume pump;
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