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Old 09-20-2011, 08:36 AM
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75 Monte came with the 8.5" 10-bolt, a very strong Rear.
If your Cam requires that much stall a 373-410 gear would be better.

The larger Cam moves the engine's power band to a much higher rpm, so you need a numerically higher gear ratio to optimize acceleration.

An O/D Trans would give you the best of both worlds, use 3rd in the 1/4mi and O/D for cruising.
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