I had unburnt gas coming out until the injector issue was fixed. It was only one injector that had lost the pintle, and O ring was sticking out, keeping it permanently open (with fuel pouring in, I guesss, as soon as I turned ignition position to on arming the fuel pump).

 

jgcable...... I see you have been here too..... Fuel injectors.... pintle caps fuel injectors. pintle caps.... see the pattern?