340 HP's vs headers

Thank you for the offer, however i am currently waiting on a reply from Tonymopar on a performer SBM he is selling. I am not in too much of a hurry for a manifold as all my projects tend to run at a snails pace lately. I was able to get the performer RPM for my future 408 project for about $135 because i just waited till the best deal popped up. $150 is a good price concidering people are asking $200 and more for them.