I'm hoping that they will hold up well, lol. They are high-quality ductile iron held on by Moroso 1/2" bolts. But, I'm going to talk to KRP again and maybe try to find some 4 bolt splayed caps.

I designed a set in CAD, lol:

Does that count?

I hope for 450-475 HP at 20 lbs of boost and 8000 RPM. If it gets there, yay! If I only make it to 400hp, I won't cry.

Here its something to think about if you want to use a 2 bolt mains block with lots of boost and to produce the kind of HP you are talking about, this is a picture of a 2 bolt mains block V8 engine to show you what can be done to achieve what you want:

this picture was borrowed from the Badd-A$$ racing engines company, and this is the text that follows this picture:

2 bolt main blocks can be used for racing engines when one of our main supports are installed. You can see how it ties all of the main caps together and turns an ordinary 2 bolt main lower-end into something many times stronger than a standard 4 bolt main. These are a must for small block Fords and 2 bolt main Chevy's when using high compression, blowers and/or nitrous oxide. Our billet main supports are only available ON our engines. We do not sell them outright.

P.S. I hope this info can be helpful for you to get an idea of what can be done to make it stronger than already is right now.

You are an absolute idiot.
You do realize those turbo engines from the factory were rated at 190 hp from the factory(pending on model) with max boost being around 11 psi set from the factory. A boost controller, a intake DP and exh on those ford 2.3 motors would put them well over 300 hp with 20 psi. However the small t3 that is on there doesnt' do too well at 20 psi. Might as well swap to a larger turbo by that time.

I think Indiyfieros biggest prob is getting it tuned right with a carb setup. But tehn again I think he is running some sort of EFI setup. And the carb is just to let air by through with the injectors in the intake mani. I might be wrong though.

You

No and neither do I care

Like I said some had 190 hp crank from the factory. Turning up the boost 5 psi will yeild more then 30 hp. I also stated intake DP and exh as mods as well. 20 psi is too much boost on that tiny T3 which is why I said its better to just go bigger at that point

And I never stated anywhere anything about 400 hp. Which tells me you can't read. Which furthers my argument about you being an idiot. See those of us that aren't idiots can read and you prove nicely that you can't.

Thread hijack. Thats it for me here. Back on topic.