900 SPG ported heads and poor performance - Saab Performance Bulletin Board - Saabnet.com
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900 SPG ported heads and poor performance
Posted by Robert (more from Robert) on Thu, 28 Oct 2010 07:57:54
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I had my heads ported and polished, now I have problems at top end. The engine doesnt boost all the way and the boost fluctuates. I put larger fuel injectors on it and it runs excellent at bottom end, but getting to top end is frustrating. Sometimes I blow the plumbing off when I hit the gas and then it dies until I clam it back on.. Anyone know how to fix this? It should screem when I takes it up to 100 plus, but the fluctuations is frustrating..
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