Cam Shaft Lift X Rocker Ratio Comaparison Guide
Cam	Inlet Angle	Exh Angle	Lobe Sep Angle /Intake Centerline	Inlet Lobe Lift	Exh Lobe Lift	Rocker Ratio	Inlet Valve Lift	Exh Valve Lift
STD Holden	182°	190°	115/111	0.258	0.255	1.6	0.413	0.408
				0.258	0.255	1.65	0.426	0.421
				0.258	0.255	1.7	0.439	0.434
				0.258	0.255	1.8	0.464	0.459
				0.258	0.255	1.9	0.490	0.485
				0.258	0.255	1.98	0.511	0.505
XP VS cam	206°	216°	115/111	0.320	0.317	1.6	0.512	0.507
				0.320	0.317	1.65	0.528	0.523
				0.320	0.317	1.7	0.544	0.539
				0.320	0.317	1.8	0.576	0.571
				0.320	0.317	1.9	0.608	0.602
XP Hot cam	212°	224°	116/111	0.325	0.335	1.6	0.520	0.536
				0.325	0.335	1.65	0.536	0.553
				0.325	0.335	1.7	0.553	0.570
				0.325	0.335	1.8	0.585	0.603
				0.325	0.335	1.9	0.618	0.637
XPZ Hot cam	217°	225°	116/111	0.352	0.333	1.6	0.563	0.533
				0.352	0.333	1.65	0.581	0.549
				0.352	0.333	1.7	0.598	0.566
				0.352	0.333	1.8	0.634	0.599
				0.352	0.333	1.9	0.669	0.633
Intense Stage 1X Cam	210°	221°	115/111	0.321	0.329	1.6	0.514	0.526
				0.321	0.329	1.65	0.530	0.543
				0.321	0.329	1.7	0.546	0.559
				0.321	0.329	1.8	0.578	0.592
				0.321	0.329	1.9	0.610	0.625
Intense Stage 2X Cam	214°	222°	115/111	0.332	0.338	1.6	0.531	0.541
				0.332	0.338	1.65	0.548	0.558
				0.332	0.338	1.7	0.564	0.575
				0.332	0.338	1.8	0.598	0.608
				0.332	0.338	1.9	0.631	0.642
Intense Stage 3X Cam	222°	228°	115/111	0.338	0.344	1.6	0.541	0.550
				0.338	0.344	1.65	0.558	0.568
				0.338	0.344	1.7	0.575	0.585
				0.338	0.344	1.8	0.608	0.619
				0.338	0.344	1.9	0.642	0.654
Xtreme Energy	210	220	115/111	0.320	0.320	1.6	0.512	0.512
				0.320	0.320	1.65	0.528	0.528
				0.320	0.320	1.7	0.544	0.544
				0.320	0.320	1.8	0.576	0.576
				0.320	0.320	1.9	0.608	0.608
Max lift on stock heads is about 0.520"
For Mild Heads with Max Lift too 0.600"
Wild Heads with Max lift over 0.600"