67 cuda headers

Hi i have a 67 cuda with low deck and indy-1 heads i have been running hooker fenderwells for many years these are a good 20 year old and there time is up. my ? is. have these headers improved or changed since, ie tyre fit i did have to alter mine to fit , what about tti step headers anyone fitted these with same combo. this is a real pita just cant afford custom headers so whats the next best Thanks Mark. UK