Please tell me the best fit small block headers.

I think the best FITTING headers hands down are the Summit cheap headers. They hang low and you might have to ease a tube or two off the torsion bars.

But there will be NO having to dent or crush tubes and they will not scrape if you run the car at least at the stock ride height and have stock diameter tires on the front.

I had them on my 71 Dart and they never scraped or hit anything. Car had power steering.