i'm going to put the 456 in it and give it a try before checking into the converter,,,i believe the converter is tight but he don't want to think so,,,it is a 5800 ptc,,i'm going to flash it on my car and see what it will flash,,he thinks my motor is weak and not making enough horsepower,i don't think so
my motor is a 400 30 over flat top pistons,670 something roller cam,eagle rods,eagle standard stroke crank(cast)brodix heads after all the angle milling and pocket porting there about 240 plus cc w/208 valves,100%new bearings(rod,main,cam,all new gaskets,brand new engine,,i'm thinking a 406 with about 600 hp,,,what you think,,its not my motor,,,,steve