Fuck a f23, if your gonna go f series... Go f22Ax. Any of them, but the A6-7 are the ones to have.
The f23 has the same siamesed ex ports as the f22Bx and closes alot of doors as far as ease of boosting in the future...
Also the F VTAK head flows about like shit.
Trust me... I had a very successfull love affair with the F series (if ya remember that far back). I made about the same on a bone stock F block as widebody does on pump with his built H... Would have made more too...if I wouldnt have fucked the motor up being greedy and dumb no retune for more boost...
The F22Ax can be had DIRT cheap... Throw some ARP headstuds at them an run a OEM vbalancer and theyre good to go for around 375-400 WHP. Stock from pan to cover.
Also the iron cylinder liners are a bonus too, throw some pistons at it and make ovfer 400...
Not saying thats what you want to do, but you COULD...
The Fs TQ down low is REALLY REALLY fun, and you dont HAVE to rev them to make the power really usable... But I bumped my limiter to 7K on mine and had 0 issues.