Great Lakes 4x4. The largest offroad forum in the Midwest - View Single Post - 1978 460 added parts now im slower???
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Old June 30th, 2013, 04:52 PM   #15
Bigcore1990
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Join Date: 02-26-12
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I would suggest tearing down the engine, take heads to a machine shop or somewhere with a flow bench. Get your flow rate specs to see where you stand. Then i would get a hold of an engineer at comp cams or howards, even an engine builder. Give them all the specs of all of your engine components and see what they suggest. Most are happy to tell you where you went wrong and what you can do to fix it. Also, are you making peak power at 3500 rpms? If not, a 3500 stall isn't going to help you in anyway.
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