I have a 97 vortec 5.7.
It idles high when I put it in gear drive or reverse put it in park or neutral it idles normal.
What would cause this. I have not done anything to it other than alternator and idler pulley
It was the fresh air side makes a lot of sense after air filter. I just never noticed that much air going thru passenger side valve cover. I have read a lot about it.I got it now. Thanks for the help on it. smdh
Loose hold down bolt would cause that letting it wobble back and forth when put under heavy load or racing. There is play between the distributor and intake. I would say almost a 1/16 if that. But that is enough to eat it up