SpeedTech/SW headers + AFR?

[reschke18]

I know that Speedtech headers have good clearance and I will be running them with my big block on a stock chassis with a Unisteer power rack (same headers you will be using). I don't have mine yet, so I cant speak directly, but after hours of research, I know they are the only ones I will be buying. The header clearance issues usually occur around the steering box, and your heads will raise the exhaust port 3/8", so this would move you away from this area. The concern would be if you are running shorter body mount bushings. You may have floor to header clearance issues if you are. If you run stock height bushings, I don't think you will have an issue, although the clearance will be tighter.