So I'm stuck between 2 decisions! and found this thread!

I know David said stock a15 is good for up to 10psi which is awesome!

I have ARP bolts and studs and the engine is at the builder getting a clean up.

I have an efi manifold and a2 turbo setup coming.

I am trying to decide whether to just EFI or to EFI and turbo.

If I was to EFI and turbo I was wondering what I should be doing to prepare the engine for boost? It comes with an external wastegate I know in NSW I'd need to plumb back in to the exhaust somehow..

I am unsure of the quality of the wastegate so should I get that serviced or checked before fitment?

I don't have a boost controller or the like so would that be recommended or should I start with the right spring in the wastegate and go from there?

I'm more than happy to just go EFI but I figure if I'm doing all the work and getting it engineered I was wondering about the what if!

So far on my build list I know I still need:

1. Return to tank
2. Surge tank + pumps etc - I have a fuel regulator already
3. ECU - thinking an elite 550
4. Modifying the dizzy to act as a hall effect - theres a guy in south africa who does them I don't know anyone local - suggestions welcome
5. Work out what manifold and head gaskets to use
6. Decide what to do pistons and rods wise

I'm not looking for anything crazy just a bit of a fun road car