Try the oil pressure cross over line.... $65 and 30min to install. It balances out the oil pressure on each side of the block. I've heard that it quitens the engine some and has even fixed some idle issues. I'm going to buy it in about a week to see if it fixes my lopey idle.
it can be purchased from sinister diesel
http://www.sinisterdiesel.com/other/...structions.pdf
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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