Join Date: Jan 2019
Location: Sedgwick, Kansas
You are a bit overcarbed, but honestly, unless you're really hurting off the line, it's doing its job, looks like. It's not going to cost you performance so much as economy and driveability. Part throttle would suffer more than anything.
Going to an Air-Gap might get you some, but if you just want that magical 'peak horsepower' long-tube headers should provide more top end charge starting around 5k or so. Not sure what your exhaust system is like. Stay conservative; don't shoot for stovepipes. I'd recommend 2.5" for you, to improve scavenging.
Shorties give you nothing except a way to get the burnt fuel out of your engine. Tri-Y headers give you a modest midrange AND top end charge, because they offer harmonics that improve scavenging at both those RPM ranges. Long tubes give you nothing at the low to mid, but REALLY pull on the top, which is why most drag racers use 'em.