i have a 428 out of a 1968 merc marauder(auto. trans also). am going to install in a 69 2whl drive pickup. the air filter housing has SUPER MARAUDER 428 4V in gold letters. is this thing merc. version of fords 428? was it sold to merc. division for installation in these cars? what kind of hp does this thing have? any info. on this engine,trans., combo. torque figures etc.