1971 340 Exauhst Manifolds

i have a set of 1971 340 exauhst manifolds for sale. these are no ordinary manifolds at all, these manifolds have been completly sandblasted inside and out, then ported and polished on both sides. i had them ported on the head side and the lower part that the exuausht bolts to. they are opened up as larger as they could be without being in danger of causing cracks, they have been ported as deep as they possibly could and polished up to smooth to the touch feeling. After that i had them sent off to be put in a tumbler used to polish. the ports came back awsome, these manifolds shold really flow and increase hp just as much as shorty headers. then they were professionaly sprayed with a 1200 degree cast appearing temperature paint. i really hate to get rid of these because of all the time and money that i have in them but i have desided not to go with a factory look. these are the few manifolds that ive seen that dont have that pointless horsepower robing valve in them. these manifolds look excellent and will perform even better. i have done had this done before and it really makes the sound of the motor unique. a motor is much easier to work on with manifolds as apose to headers plus no header dragging issues. i am asking $400 for these and for as good as they perform and look that is a fair price. i have coated the ports with WD40 so they would not rust. i will be getting pictures on tomorrow, please send me a pm if interestead, thanks