A body big block power steering gearbox

Call RMS and talk to Bill the owner. Yes they make it for BB. I was dreading installing the headers, I waited till it was the last thing.TTI 340 step headers, I had the car on a lift and the damn things slid right in! I was amazed. Mine has a power rack. I love it.
Power rack is nice,.... does the coil suspension do well with bumpy roads? I know your in FL., but Ohio roads are very diverse! Also my inner fenders need repaired/replaced, because of cut out headers. I saw narrowed inner fenders on their website, have you those too??? Thanks!