Reposting this here because I think I can get alot more eyes on it here. Have it on the TBI forums too but we'll say its there for my TBI info and here for the engine info i need

Well after sleeping on it I decided that I am going to scrap the 305 project (I know that idea lasted all of 3hours) and shoot for a 350 TBI nothing nuts but just enough to bring me to 350hp with room to goto 400hp if I choose. So I need a few things from you guys to start.

1) What can I pull a 350TBI and a rear with posi and somewhat adequit gears out of?
2) When I redo the ECM do i need the entire computer from the donor vehicle? And does it plug straight up inplace of my old one?
3) What work should I be doing to acheive 350hp? I was thinking:

• Keep stock heads and port and polish them
• Get a cam around an LT1
• Upgrade my TB to a holley 2" bore 670cfm and mod it out with the 350 injectors and a VAFPR injector pod.
• Some sort of Edelbrock intake manifold
• 1-3/4 prim, 3" headers and 3" Ypipe- 3" all the way back

4) What will the car need? I was thinking:

• Walbro fuel pump and adjustable pressure
• subframe connectors
• a posi rear - what size? I plan to pull this from the donor vehicle can that handle the engine at 350hp knowing what the packages included?
• I know my tranny will need a vette servo, shift kit, and a stall converter but what RPM?

5) Does the 350 bolt right up to my 700r4? Can my stock 700r4 handle 350hp with the above mods to it?

 

Alright did some more research and found that I should pull my 5.7 out of a Caprice because its roller. Its true that a roller block is a better platform than a flat corrrect?

 

i put a stock 350 tbi from a z71 and it blew my 700R4 in about a month or so. Get it rebuilt or buy one if you want it to last long.

 

and ditch the TBIheads...go with some vortecs and get the vortec tbi maniifold ,and use that rooler cam block and you will be way ahead of the game.