COMP Cams High Energy 252H Hydraulic Flat Tappet Camshaft Small Kit Lift: .433" /.433" Duration: 252°/252° RPM Range: 500-4500
Ford 240-300 6-Cyl 1965-1996 (10"Deck)
Good torque and mileage for 240-300. Excellent throttle response.
Do I really need to swap out my valve springs on a .433 lift 500-4200 rpm is a good number but seeing as how its NOT .500 lift or higher I don't think the valve springs are needed until I max out the cam. When its time to should have valve seats hardened?
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