Hello Everyone! I have what I believe to be a Perkins 354 turbo. it was swapped into a 79 F250. the engine is painted blue so I'm wondering if it is the marine version. Ive been searching the net for as much info as I can but just can't seem to get complete info. the engine starts but has a lot of white smoke. does this sound like a pump timing issue? it has a lucas CAV DPA pump on it. My next question is Ive read a Holset H1C is a good upgrade for the original turbo would you guys agree? or is there a better option like the HY35 ect.? last question is how do you turn up the CAV pump? seen a lot of post about it but no real complete how to's. any help would be awesome i can get pics and serial #'s if need be. Thanks