Anyone run these? They are dirt cheap ($180). All the listings say they will fit hi-po 289s in Mustangs, Falcons, Galaxies, etc with C4 transmissions. https://www.holley.com/products/exh...MIk5rl2Yye6QIVGZSzCh3MwwRBEAQYAyABEgJRIPD_BwE
