I’ve had two separate vehicles act this way and both turned out to be crappy spark plug wires. One set being brand new but after changinging the plugs and coils too I eventually realized the wires were crap. A new set of Taylor’s race wires fixed both vehicles. Both would idle good and rev slowly good until it warmed up and you couldn’t give it any kind of throttle past snail speed. It’s definitely worth swapping them out and seeing. Everything seems to be junk these days.
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