That's right....the 7FB 425 actually had a lower rack setting than the 7FB 400. ATAAC made the 25HP like you said.:thinkingthanx!!sledman i believe that 3421,7fb was the LAST WILD nozzle and pumpeelout:bawl ,before EPA begins regulations, between a 400 7fb and 425 7fb there is no difference, the 25 hp to let it do air to air VS jacket cooler:sly
unish
Is anybody on this post still. You all seem very good with the b engine and I need help. I’m in framing mine a 1985 b Kenworth:thinkingthanx!!sledman i believe that 3421,7fb was the LAST WILD nozzle and pumpeelout:bawl ,before EPA begins regulations, between a 400 7fb and 425 7fb there is no difference, the 25 hp to let it do air to air VS jacket cooler:sly
unish