Realistically a 2.8L with a 1000+hp turbo isn't gunna be THAT streetable. It kinda puts you in "the middle" as it's not going to be good on the street & it's not gunna get you anywhere in roll racing either.
Obviously this is just my opinion and no doubt a 650kw car is gunna pull like a freight train once it wakes up!
But making a car that's gunna be laggy on the street to compete in the 2nd biggest dick shwinging contest after WTAC every couple of weeks/once a month is going to ruin the car for all those other drives you will take it on.
I think you're off ya head ditching V cam and the 6466 man.
6466 + vcam + 2.8L + sequential will make for a brutally fast/responsive car thats gunna do street duties, SAU cruises amazingly well! But realistically it ain't gunna change your roll racing result at the end of the night cos you're going home once the big boys come out to play anyways.
All you're doing is sacrificing a f**ktonne of low/midrange & overall average grunt for a lazy 50kw up top dude? At the expense of 80-100kw of midrange grunt and far more drivability off boost ditching V cam.
Ditching V cam on a street car is a huge mistake. You've felt the gains its given you and you're basically going 2.8L to give you the low down grunt V cam has given you. You're taking a big sideways step with shit cams and no skinny cam. Bigger cubes & v cam is the only logical choice for a street car. All you're building is a top end screamer in the "guise" of a street car imo.