Reply to "racing camshaft recommendations?"

Here's a spec for a custom ground cam from Bullet Cams. Its a tidy little cam with a wide flat torque curve to complement the 4V heads and road racing. With a good exhaust system it should make good use of the Holley intake manifolds top end capability while still retaining some low rpm torque for accelerating out of corners.

Camshaft Spec:
Grinder: Bullet Racing Cams of Olive Branch, Mississippi
Telephone (662) 893-5670
Engine: Ford 351 Cleveland, 4V cylinder heads
Solid flat tappet camshaft
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Intake Lobe: #FF280/371 (CRA, designed for Ford 0.875 tappets)
Intake lobe mathematic centerline = 110° ATDC
Exhaust Lobe: #F292/373 (CRA)
Exhaust lobe mathematic centerline = 114° BTDC
112° lobe separation angle (camshaft degrees)
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Exhaust valve opening = 80° BBDC
Intake valve opening = 30° BTDC
62° overlap
Exhaust valve closing = 32° ATDC
Intake valve closing = 70° ABDC
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280° advertised intake lobe duration
251° intake lobe duration at 0.050"
Intake lobe major intensity = 86
0.620" net intake valve lift (1.73 rocker ratio, 0.022” lash)
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292° advertised exhaust lobe duration
263° exhaust lobe duration at 0.050"
Exhaust lobe major intensity = 94
0.630" net exhaust valve lift (1.73 rocker ratio, 0.019” lash)
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Request to have the custom ground flat tappet cam nitrided (surface hardened) and polished for the best possible durability.

-G