Hey guys, is there anyway to verify that the 2" o-port first gen Firebird headers fit an IA or a IAII block? I don't know if it makes a difference. The reason I am asking is I am needing a set of 2" primary tri-y's for my 67 Firebird. I haven't decided heads yet, but if I run e-brocks or Tigers I will need a set. I know Maddog's sight says his 2" o-ports don't fit IA blocks. Anyway just thought I would ask.
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Ben Mowery
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