Slant Six Build help needed

Well, one thing you need to understand. If you build a slant, you do it for the love of it. If you expect V8 power, you may as well swap one in.

That said, there ARE some ways to build a powerful slant, but they can be costly and or may have a learning curve. People have build cheap turbo slants that run very well, but unless you know about turbos, there's your learning curve.

There have been a few go with blowers. Again, learning curve and cost. I myself was building what might have been a 300 HP naturally aspirated slant. But, life happened and I had to sell everything. I would had been able to build a very rowdy small block for what I would have had in that engine.

It all boils down to what you want and expect from your slant build. If you're doin it for the cool, then I say forge ahead. If for power, you may want to rethink it.