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Re: Valve springs.
I've had Comp 921 dual springs in for about 14,000 miles since the cam (see sig for specs) was put in with no problems. Of course that was about 6 years ago or so.
Steve
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T-Rex Cam (242/248, 608/612, 110), Comp921 springs, Kooks 1 7/8" Hdrs, x-pipe/off-road pipe,Vararam, 4-tip Stingers, ASP UD Pulley, Dual Row Timing chain,TR55IX plugs, MSD Wires, Raptor shift light, 4-point roll bar, Nitto 555R2, 451 rwhp/396 tq NCM Member #23233
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