got a strong gas smell and idle problem under the hood of my 2g . when i rev the engine there is a strong gas smell like the gas isn't burning and the car drops in rpm to 200 than goes back up to 800. i did a boost leak check and i only had a tiny leak. i got a blitz blow of valve but it runs back into the intake dump tube. i recently changed the fuel filter and i checked for gas leaks but found nothing.my injector oring are fine to no leaks from there. any one have a cure for my problem? the mod i done to the car are small 16g,3"dp,2half cat back,intake,unorthodox under drive pulleys,1g TB,walbor 255pump, and running 15psi.