okay i have stock heads/cam - mods include boltons and a s-trim blower with a 3.25 pulley and 6.6 crank. thsi is on my 94 z28. had madz28 tune the computer and the car was running very rich and wshed out my ngk plugs. so i sent it back to him. i have svo 42lbs injectors and a 255walbro fuel pump. he said the svo injectors are rated at 39.3 and we run them at 43.5 psi. so he put my injector constant at 44.3. well the car still had a hell of a time starting and when i finally got it too it would run for bout two mins then quit. i was not getting any engine lights during it running. i put autozone special 99cent plugs in it just to make sure i didn't wash out another set of ngk tr6 plugs.... i pulled number one plug out and it was dry and clean but did have a tiny bit of moisture onit but didn't see anything on the place where the spark forms and didn't smell like fuel. ngk plugs got washed out and they were wet and you smelled it right away. whats wrong with my car??

 

Is the blower fuel supplied by an FMU based on boost, or did he program the PCM for the extra fuel?

 

no fmu unit - he setup the fuel through the pcm.. so do you have any ideas?