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Hydraulic: Good for daily driven performance cars. Largest Cam with stock converter. Lower Gears. Mild Rough idle. Good for daily driven performance cars. Largest cam for stock converter. Lower gears...

Hydraulic Roller: Mild street performance. Slight lope at idle. Stock torque converter and Gears. Good stock HO replacement. Mild street performance. Slight lope at idle. Stock converter ok but best...

Hydraulic Roller: Mild modifications, Gears, mass air, slight idle. Mild modifications, gears, mass air. Has slight idle. Fits Ford 5.0 and 351W w/ factory roller camshafts

Solid: .500 Lift rule, under 10 of vacuum with rough idle. Very good power. .500" lift rule. Under 10" of vacuum with rough idle. Very good power. Fits Ford Small Block Engines originally equipped...

Mild street performance increase. Slight lope at idle. Works with stock converter, best with 1800+ stall and gears.

Solid: Good in late model stock on 1/4 to 1/2 mile, limited intake. Good in Late Model Stock on 1/4-1/2 mile, limited intake. Fits Ford Small Block Engines originally equipped with "Old" firing order...

Solid: 3/8 to 1/2 mile asphalt tracks. Late model stock, good power and torque. 3/8-1/2 mile asphalt tracks. Late Model Stock, good power and torque. Fits Ford Small Block Engines originally equipped...

Hydraulic Roller: Supercharged, works well with 5 speed, needs good intake with mass air and larger injectors, mild stall. Works well with 5 speed or 2500+ stall, likes good intake, mass air and...

Street/Strip EFI 227/238 Hydraulic Roller Cam 306-347c.i. with 160-180cc head, 9.25:1-10:1 compression. Needs intake upgrade, tuning required. Fits Ford 5.0 and 351W w/ factory roller camshafts

Thumpr 227/241 Hydraulic Flat Cam for Ford 351W. High performance street, stock converter ok, best with 2000+ converter and Gears, choppy/thumping idle. High performance street, stock converter ok,...

Solid: Good in heavy car on short tracks. Works with stock manifolds. Good in heavy car on short tracks. Works with stock manifolds. Fits Ford Small Block Engines originally equipped with "Old"...