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Old March 3rd, 2018, 04:21 AM
1972RedNeck 1972RedNeck is offline
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Join Date: Dec 2016
Location: Townsend, MT
Truck: 1965 GMC 5000 6X6
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Default Re: 478 V6 Into '72 K20

Quote:
Originally Posted by bigblockv6 View Post
Right now I have the stock 4.56 gears with 33 inch tires as it was from the factory. With that many cubic inches and torque I don't need that kind of gearing so either 4.11's or 3.73 would be about right for my needs and possibly an overdrive.
How fast do you normally cruise? What RPM's feel like the "sweet spot" for your 478? Yours has stock compression ratio and a reground cam, correct?
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