Re: 5.3 FI swap... acting carbish?
If you have to keep pressure on the gas I'd look at things like; fuel pump not keeping up (maybe a bad ground or weak power source), losing fuel pressure, or a problem with the tune, if the idle speeds were messed with at all due to the cam etc
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING 
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