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doesn't play well with others
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I wouldn't go to crazy. I've upgraded a couple small blocks over the years and usually with a simple cam, carb., manifold, and ignition upgrade what I usually try and do is first upgrade the radiator. If I had a two core I'll go to a three or four core to increase coolant capacity and radiator efficiency. A good fan and shroud is also important. Causing your engine to sustain higher R.P.M.'s (ex. changing from a 2.73 to 1 rear to a 4.10 to 1 rear) would be a different story, but it doesn't say you did that. A little help in the cooling dept. never hurts but from what you described you shouldn't need to go crazy. Also a temperature gauge goes a long way.
 
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