Well guys I used the seafoam today, but before I did that took my mark for a ride to warm up the engine to proper temperature then use a funnel pour the Seafoam into the PVC valve tubing until it all garn, turn off my mark it started to spit an sputter like it didn't want to stop it did that for about 2-3 second then stop, let it sit for 25 minute came out and start my mark (no problem there) then it start to smoke like crazy my neighborhood thought something was on fire because there was so much smoke, I didn't think there will be so much smoke either but when there realize what it was then they thought something was wrong with my mark, my girl friend explain to them what I did, every thing went smoothly.