Question on headman headers

what size are your dougs B3422 ? maybe 1.75" would be good, most dyno tests do not show a big power difference for a 1/8" difference if you are in the ballpark. when my 340 was strip only had the 1.875", got antique plates and now street and strip so went to 1.750" 5204 Hooker-no diff.

Dougs are 1 5/8 with 3inch collector. Currently have a 10.4 compression stock stroke 360 with mildy worked Eddies. Runs 11.20’s at 3300. Going to get it in the 10’s with a swap to 904 and correctly specced convertor( current convertor is wrong, going to sell that and my 727)
Have decided on running the new trick flow heads on my 418 shortblock. That should be 12.75 compression and will run a roller...... but heads wont be out till summer. So fool around with this 360 some more first. I want bigger headers for the 418 build