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Old 06-09-2009, 05:24 PM
mr0077 mr0077 is offline
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Join Date: Jul 2000
Location: Las Vegas, NV
Cobra Make, Engine: ERA 427 SO
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El, on the pulley issue...when I was putting my motor together I went over to a place on the northeast side of Houston called Best American Core (I think) and got a set of pulleys off a 361 or 391 truck motor (I think they are the same) and used them for dyno work. They must have been a 50% overdrive ratio (driving the water pump faster). Unfortunately I threw them away, but point is, they were cheap and all you want to do is find out if that is part of the problem. BTW, I ended up using some underdrive March pulleys with no overheating problems, so my set-up is of no help in diagnosing yours...keep us posted on the progress!
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