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Re: Question for the guys running 3.73's with a 6cyl and manual trans
This chart is in my files and is either for a 230ci or 250ci. The numbers changed a bit during the late 1960's to early 1970's but you get the idea. Cruising in the 1800 - 2000 RPM range is ideal for a 230ci or 250ci.
Of course, this assumes you have good compression X 6 cylinders. That's something that hasn't entered the conversation yet. Have you ever check the compression?
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