I think having the plenum like that it would hurt throttle response also. My first question has to be....with the FPR and the huge fuel pump do you think you might be getting too much fuel which will hurt your idle AND throttle response.
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
My first question has to be....with the FPR and the huge fuel pump do you think you might be getting too much fuel which will hurt your idle AND throttle response. 
