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jimTN · 11-01-2014, 07:54 AM

Going to that lower gear ration will also step up heating issues. The more the engine lugs, the hotter it gets. IMHO the 4.11 is a 50 mph gear. I have a 3:78 in my 32 with a stock 221 34/5 engine and it will run 65-70 but a lot better at 55 or so. On long interstate gradual hills you can see the temp gauge rising.

11-01-2014, 07:54 AM	#37
jimTN Senior Member Join Date: May 2010 Location: Powell, TN Posts: 2,645	Re: Flow problems with eddie meyer head Going to that lower gear ration will also step up heating issues. The more the engine lugs, the hotter it gets. IMHO the 4.11 is a 50 mph gear. I have a 3:78 in my 32 with a stock 221 34/5 engine and it will run 65-70 but a lot better at 55 or so. On long interstate gradual hills you can see the temp gauge rising.