Looks like the meth kit is still causing problems. The meth tank was empty so I added a liter, armed the system and blamo, engine stumbles, IAT's drop below ambient, in other words FUBAR once more. I'm pulling the hose and capping the nozzle for now. Before adding the meth I did some spirited runs, very satisfying, and all seemed fine but now I'm hearing a hiss on the drivers side. I can't pinpoint the sound precisely so piece by piece it's coming apart again starting with the hoses. The sound is loudest around where I have the catch can hoses routed but also from either the drivers side manifold, throttle body, Y pipe area. Out comes the spray bottle and pockets full of patience.

Les