Yeah, that labor cost sure is a killer ain't it.
You could get 50-70HP a little cheaper with NOS,
or 1270 with Nos close to 270-300HP for double
the coin.
Around same cost and HP as Busa
with ghetto, just a bottle to fill.
Sell the 12 and go Busa
. Stock Busa with
Nos 265HP. Cheap turbo Busa 240-270HP.
1397Busa and Nos just shy of 300HP (Slightly less
cost than big bore 12 and Nos).
Millenium Bore $400+, Pistons $450-$550, Nos kit $650-$2000
Busa Turbo kit around $4000+
ZX-12 Turbo Kit around $7-8K