Oh they know it wasn't a 340 car originally (still have the original 318 on an engine stand in the corner of the garage) It's got a '70 340 in it (with a LD340 intake & an 850 TQ), along with '71 bumpers, no carpet padding, no spare tire, no bumper jack, lighter bucket seats and whatever else I could remove from the car without losing creature comforts.
And in about 2 weeks (when it arrives) it'll have a 6-71 blower on it :D