A twin turbo build would be awesome , I was going to twin turbo my 71 Charger easier to do as it had 24" between the rad & grill for intakes & intercoolers etc !
Thoughts huh
Well I would use multiport EFI as it is far easier to dial in fuel electronically than with a carb ,
No reason the 906 heads will not work But they are open chamber with no quench , all downside , no upside , 440 source stealth heads can be bought for only a few more $$ than rebuilding the stock heads .
I would want the compression to be around 8:1 with turbos so custom pistons , preferably quench with a dish & larger combustion chamber .
You must design the cam very carefully high lift, moderate duration but low overlap is best .
Plumbing will be fun you have much less room to work with in the Cuda engine bay , I would run an inverted header with the turbos in front of the heads & move the alt & PS down lower , the exhaust can be run below the spark plugs or above the shock tower , air filters may have to go into the wheelwell behind the headlights sheilded from tire splash . , intercooler or 2 should fit between the grille & rad , battery will likely be in the trunk .
Welcome BTW