Hello racing junk. I have a complete twin turbo sbc for sale. The engine has dyno time only. It started life at a true 4.00 bore 3.48 stroke making it a real 350 ci. The parts inside are well documented so theres no suprise if you take it apart. I have lots of pictures ill give you with an sd card with purchase and the dyno sheet. The engine made an easy 787 hp @ 6644.41 rpm with a peak torq at 649 @ 6260 rpm. On pump gas. It was very easy for it.
The engine has a Manley steel crank, Manley h beam rods arp main studs, forged pistons, afr 220 cnc ported heads, shaft mount rockers (Jessel i do believe), comp cam belt drive, comp cam with comp roller lifters, turbonetics ball bearing turbos, titan oil pump and a csu carb.
The induction pipes and exhaust were really just to run on the dyno, you will have to modify to fit your application but it will come complete with the waste gates and blow off.
Please call me with any questions, I want you to feel good about the deal as its a very nice piece. It probably can make more power but i feel 787 is a fantistic number for any car on the street.
thanks for looking.