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7.3 idi aftermarket turbo
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  1. Non-Powerstroke General Discussion
    I have a 89 7.3 IDI I use this truck for freeway driving over mountainous terrain. What is a safe RPM range to opperate at? I need to acheve freeway speeds of 75 to 80 MPH. Is this possible with this old truck? Can I acheve higher speeds with out rapping out the RPM's by installing an...
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