I think Im going to sell them. I fear they may choke the 401 Im putting in. They are in rust free shape with a new coat of cast paint from eastwood on them. Heat riser is intact and other than minor pitting its good. I beadblasted them both in side and out and even ported a little on the inside of them. Are they worth anything or are they junk. They are off my gremlin with factory 304.