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Old 04-01-2004, 10:19 PM
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Jared Jared is offline
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Im running a 650 speed demon on my 355 (350-400 hp). when i installed it the thing barely idled let alone ran, they flow more like a holley 750 and have jets to match. if you go with a demon go with the 650 speed demon or maybe smaller yet. My demon has the quick change spring pod on it also, if that is what you are talking about. I also have a holley 750 and the demon will run the thing into the ground any day. as stated the demons are built much better than the holleys too. 4 corner idle is nice to have also. just my .02 good luck.
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