to all you bolters that have a 454 and a turbo 400 in you truck,what kind of mileage are yoy getting if driven in a sane way,the reason i am asking is i have a 58 fleetside that i have started on and i was intending to put a 350 and 700r4 in it, as it will be a daileydriver, but i have the option to do the 454 and 400 for free, the motor and tranny have 45000 miles on them and have been well cared for. they are out of my motor home that is 25 years old and it is going away, one way or the other. any input would be appreciated Mike Bourg
