i don't know whats wrong with my engine now...but its not as fast as before...every time when i Mash, the engine starts boggin at 4k and up...i thought it was the fuel injectors but when i took it too the shop they said nothing was wrong with the fuel system...
but one of friend said he had the same problem and it was just one of his pipping that wasn't on tight...could that be the problem?
i know its not the spark plugs because i had them replaced yesterday
but i notice, everytime when i remove the valve cover and place it back on, it starts running smooth again... but after a while it starts boggin again...please help