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| We have a 430/500 in a 2002 ih eagle pulls amazing. 30psi boost is max, 4.11 rears, 13spd, either a 1450 or 1650 touque can't remember, 60mph=1600rpm, biggest load i've hauled is about 160,000 lbs and it would make 60mph with that load but totally maxed out. When accelerating with a load of this side you need to run from 1500-1800 rpm thats where she really pulls and makes the full 30psi boost.
i would say you need to plug the computer in and see how its set up.
Edited by Canfarmer 12/3/2009 17:21
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Detroit 12.7 pulling ability?
