This is the story,commin home from work i go get some gas.. i see a red gsr and the owner peeping my car..looked like a race to me.. we both leave the gas station and i go out on the side of him pas him up and he drops on me. i drop to 2nd and go to third.. and it happens i go from 3rd at 8k rpm to 2nd gear instead of 4th.OMG that shit cranked it so i put it back into 4th after that wild kick and stop at a red light and my car shuts off.. it wont turn on and im stuck in the middle of the street. i get it pushed and start it by putting it in 2nd and droppin the clutch. i drive home that way but if the car was to go under about 1500 rpm it shuts off.. i dunt kno wats wrong with it. i dunt kno bout a bent valve because wouldnt i hear sumthin? it runs good when im driven. does anyone know wat my problem could be?. im soo bummed out this sucks... i took it to a shop and he check it out visually on the outside.. he changed my plugs.. i was low a qt of oil and he checked my timing everything was coo other than that and he also found about 3 of the nuts holding my intake manifold in were gone so he told me that it might be that i had blown a gasket or sumthin and also he had said that the car was running rich cuz of the smell..help me please