Thank you for the reply, I appreciate it. So for a low car it makes sense to stick to shorty headers or the even just biggest manifolds like 340 driver side, large magnum passenger? (And maybe try to cram more power in with a supercharger, since you do see lots of people running manifolds and lots of turbo boost on modern builds)
Because even though fenderwells would technically check some of the boxes, they are destroying the body rigidity in places where people add reinforcements to inner fenders. And they are probably bad for ground clearance anyway.
For steering, I have 14:1 Borgeson and it still seems too slow for me, as I'm used to modern racks.