I've been wanting to install an oil catch can on my srt6 but i feel that i should clean the intake manifold and throttle body at the same time. Is it possible to clean both pretty well without removing and disassembling? From what i've read, chemicals like seafoam, bg, and other cleaners don't do much of anything and are basically a waste of money. Also, is there a diy manifold cleaning guide on this forum?