I bought some headers for my 86 Firebird the other day that do not have a place for the egr valve. I am planning to put a 165 in and start tuning as soon as I get the paint and body finished, but my question is when I start tuning will it be better to tune out the egr or adapt my headers to accept an egr valve? I am trying to make it a decently fast car however it is a daily driver so I am more concentrated on fuel milage/ drivability. Any input is greatly appreciated. Thanks