Im trying to sell my car but if i don't soon im gonna build a 350.Now to the questions

1:What parts are interchangeble between the 305 and a 350?
2o i need to change computers?

3:What do i need to change?

4:I got a 350 block and i was thinking of buying a rebuild kit from summit and switching over the TPI anyone have any experience with the kits?

PS I know this has probably come up a million times but i would really appreciate the help.

 

I'm also intrested in what it would take

 

1:What parts are interchangeble between the 305 and a 350?

All of them.

2o i need to change computers?
No. Main differences factory 305TPI to factory 350TPI are the injectors, chip, ESC (I think), and knock sensor. I dont think the knock sensor is much of an issue though, I've swapped one to the other with no difference in knock counts or the sensor's ability to pick up knock. Also, many people just use the same parts and up the fuel pressure. The ESC is the only thing I am not positive of, might try a search and see what you come up with.
I think this applies to TBI as well.

3:What do i need to change?
I'd change the engine from pan-valve covers. Reuse your old intake and all the sensors.

4:I got a 350 block and i was thinking of buying a rebuild kit from summit and switching over the TPI anyone have any experience with the kits?
Nope. Just make sure the kit comes with good parts, many times they stick cheapo parts in there to make the price less.