Yes it would and that is the problem I have with them yet. I don't know yet where these make the tie rods land in relation to the instant center. If they're way off the bump steer will be horrible.
Looks like you're off to the great start. I think we can easily get you in the 40's hp wise with more head and carb work.
For the head you really want to pay attention to the flow around the valve guide and valves. That's where you can gain or lose a lot.
Cam depends on what you're looking...