Running 273 still in car.

Getting ready to pull original 273 out of 66 Barracuda. Selling complete motor, carb to pan-minus the oil filter 90 degree adaptor and distributor. Engine starts and runs good. replacing with different motor. Would be nice to prove running condition to buyer before I pull it.
Car is originally from Scottsdale, AZ
I am located just north of Seattle, WA.
$500.00 Will deliver within resonable distance.