Old thread, new life!
So I'm planning on giving my intake a nice cleaning when I'm off work next week. I'm seriously considering getting a small blaster from harbor freight and some fine walnut media.
http://www.harborfreight.com/portabl...kit-37025.html
I was wondering if anybody had any input? Using scrub brushes and seafoam looks like it cleans the majority of the valves, but not as well near the outside sealing surface. I know the walnut process has been used before and thought it might be worth the investment. Anybody ever use this harbor freight one?