na svt said:I haven't seen any headers that have full length 1 3/4 primarys, only stepped tubes, 1 5/8 to 1 3/4.
I did here that Stainless Works will make a set to your specs.
Would these be for the n/a 5.4?
na svt said:What about Kooks?
na svt said:John, I asked about the camshaft keys a while back, did you find out anything?
MP-John said:Modcamponents makes a set, Big $$$. We use them on our race engines up to 10.5k rpm with no issues. They will survive the street too.