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Quote:
Originally Posted by Oldgearz
I have a 30 Coupe with a 3.27 rear. My car has a B zenith Carb (the only difference from an A Zenith carb is the presence of a power jet), a B camshaft, modern upper distributor plate, a Snyder's 5.5 head, and a V8 clutch set-up. No overdrive. The car has excellent acceleration and hill pulling power. I love it. Would never think of any other rear end ratio. I can start out in 2nd, but don't do so to reduce clutch plate wear. However, I still turn a lot of RPM's (don't really know how many) at 50mph and am uncomfortable at 55 mph. I am going to put a Mitchell OD in it, and have been waiting 4 months on a waiting list to get one. Car should be really sweet then with a 26% reduction in rpm's engine will be doing 45 mph and car will be doing 55-60 mph. I have no fears that the engine can't handle the OD with the 3.27 differential.
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Good to know you have no issues with the 3.27. If I have my math right the 3.27 is a 15.5% overdrive from the standard 3.78.