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Competition Cams 127500
XFI SPR 229/236 Hydraulic Roller Cams for Ford 4.6/5.4L Modular 3 Valve; Powerful cam with very rough idle, biggest cam to use with stock heads. Good midrange torque with incredible top end hp gains. Solid power above 4700 RPM. Spring/phaser upgrade and custom tuning required. 3.90+ gears and 3000+ stall.
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Competition Cams 127550
XFI SPR Blower 237/248 Hydraulic Roller Cams for Ford 4.6/5.4L Modular 3 Valve; Big power gains in mid to upper RPM range
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