Thread: Need some help tuning

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Just an FYI. This is the Holley response to the same questions I posted;

"Yes the engine combo with the Vortec heads will need more fuel I would try 68/72 jets and see how IT reacts and if it still needs more pump shot try a .035 should be a .031 stock. Read the plugs and tune as needed based on plug color and engine reaction."

I'm expecting my order today which includes jets from 70-78, 5.5 power valve, gaskets and 33 & 35 discharge nozzles. I already have the pump cams and secondary springs. This will give me the parts and a starting place to tune it up. I plan to lower the fuel pressure and try the 68/72 combo first then read plugs.

Thanks to all for sharing your experience. I will post with results as soon as I have time to tinker with it.