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Message: <blockquote data-quote="lwarrior1016" data-source="post: 1406944" data-attributes="member: 20210"><p>I did the heads on my npi 5.4l f250 while they were still in the truck. I had the cams removed so all the valve were shut. I covered the oil pan and taped off all the ports I wasnt working on. I focused on the front of the port to about half way down where the pinch is. I had a small rag shoved in around the valve while I was grinding. When I was finished I put the shop vac over the port and got out what I could then pulled the rag out with the vac still on the port. After that, I blew it out with air. Also, you can see straight down onto the valve all the way to the seat so its pretty easy to make sure you got everything. The day I put my truck back together I took it on a 1500 mile trip.</p></blockquote><p></p>