[Samujr]

I would like to get expert recommendation for port size for 2.6. Main components:
66mm t non cw crank, cross drilled
2.0 rods
92mm Mahle pistons around 10.5:1 with 2.2-2.7 head volume if not mistaken
DC60 cams
MFI or 46 Webers
twin plug

I tried to search but did not really find details. 38/38 or larger? 46 webers are with 40mm manifolds, is 40/38 or 40/40 too big? I understand it also depends how well you are able to do porting.
I need 250-260hp crank with car weight 2000lbs wet. 911e throttle bodies and stacks should be modified or carbs if MFI is too big challenge (as I don't have pump yet). Some mid range should still exist, our tracks are short. Or change to 2.8? I need to use muffler as max 100db is allowed and I believe Megaphones are too loud. All recommendations appreciated!

Also if someone has suitable set of heads for sale, I have wtb ad on sales section.