Hey everyone so I?m new to the Hemi world. I don?t have a clue how to tune. Went to a shop did a heads and cam package. MMX max effort, pushrods, springs, hellcat oil pump, and replaced my pistons with forged because of a ringland failure. After getting it tuned it starts perfect on cold starts. But when it gets to operating temperature it struggles to start. Has stalled twice on startup and other times cranks slow and starts but stays around 2-300 rpm?s for a short time before it catches. I?m trying to figure out if this is common and what can help fix. I?m located in VA near the water so pretty much sea level, and it was tuned in the mountain side of Va, so not sure if the altitude has an effect. Please help so me and the tuner can attempt to fix the issue.
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