I was having problems towards the end of the 1/4 mile running a RobMc and Qjet. It felt like it was starving for fuel. Switched over to an 850 dp. Had the same issues. Took the car over to the dyno shop. On the dyno the tech found an ignition problem around 5400rpm where the module was starting to cut out. We replaced the old distributor with a new MSD. The problem went away and the engine now makes power up to 6300rpm. The ignition might be something else to check.
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