[Bugyengines]

Hi, which primary and collector size would you go¿ 6.2l chevy ls-series, magnacharger (2300) into truck awd weighting 5500 lbs, 5000 feet above sea level, 248/251 lsa 116 .624/.624 lift, 10.3:1 rc, gm ls3 cnc ported heads, 3500 stall, 200 nos shot.

 

[Blown06]

I'd have a 2" primary on that. If you get a kooks header, it'll likely have their 3.5" merge collector on it.

In a combo like what your talking about, there would be no such thing as too big a header. IMO