header pipe size.

[phoenix1]

I am about to have headers made for my car and i would like some input.Ihave sme serious room constraints .engine is 598 ,14.5.1 comp,dart 355cnc,alloy rods,brc pistons,1250 modified,816/783lift,287/308 duration installed on 117 cl.jesel rollers,belt drive 1000hp aspirated.also has fogger with 31jet(300).trans is glide with 1.80 low 4500 conv and 3.9 .car weighs 3200lb with driver uns on c16.also like for and against try y against 4 into 1.thanks in advance Colin

[lanham]

Check with Lemons Headers.lemonsheaders.com.I called them and asked what they recommended when i built my headers.There are formulas you can use but i just asked them since they build them everyday.