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1996 5.7 no start purchased in this condition. Checked fuel pressure at crank its 55-58 psi check spark and has spark at plugs. Have installed new spider because it had a small fire under the intake burnt injector lines and had filled oil pan with fuel. Drained oil and replace oil and filter . Checked timing it was ok but can gear had some wear so replaced dist. and plugs. Have 175 lbs on compression on almost all cylinders one had 165 odometer shows 123k and the truck looks right for that. will not even try to pop?

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Does it turn over but not start?  Your fuel pressure is correct so I doubt you have a fuel pump issue.  Any codes? 

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