Snowman,

it sounds like you have the wastegate pipe @ a 90 degree angle off of the 2.5" feed pipe to the turbo?

Hard to tell, no good pic of the wasegate pipe.

If so, that is not good for exhaust flow, it will probably still work, but it's not ideal.

Hard to tell, do you have room to install a wastegate pipe onto the wastegate?
Do you plan on using a pipe for your wastegate & merge the wastegate pipe into your exhaust system or run a separate pipe w/a mini muffler or?

Not sure if you got an intercooler, can't remember.
If not, get one.
Do not just run a short pipe from the turbo to your carb bonnet, you really need an intercooler.
This CO. has a lot of cheap$$$ intercoolers:
http://cgi.ebay.com/ebaymotors/25-x12-X3...=item3a6771ce68
intercooler pipe kit: Just some examples:
http://cgi.ebay.com/ebaymotors/2-5-BLUE-...=item336c0970c9
http://cgi.ebay.com/ebaymotors/3-UNIVERS...=item5645a69727

It's looking like a fun project & more like a turboed engine, keep it going.

MBHD

12 port SDS EFI