These are the injectors in question

 

Not sure if those injectors would even be big enough. I'll pry need 80's. Anyone ever drop a 340 walbro in an obs tank?

 

Not sure which S475 you're looking for, but you can get a S475/83 with a T4 flange. I have one on my 6.2 and love it. I bought a KB Racing manifold and built the rest of my kit. I'm glad I went with a quality manifold the first time. Kyle's (KB Racing) products and service are top notch. I have a few pieces from Trick in my build, as well. I definitely try to save money when I can, but I would certainly recommend you do it right the first time. Stick with KB and Trick products and you can't go wrong.

 

I ended up piecing together a custom used setup from Craigslist and the classifieds. That turbo is a lot more expensive than the s475 T6. I'm digging into the fueling necessities for that turbo now. I'm wondering if these Bosch 60's are going to be enough.