Is there an off the shelf header that will work to put a 440 into a mopar A body (75 Duster) with Indy -1 heads? I see TTI does not offer one that will work "without alot of modification". The car has the fenderwell removed, but still has the stock k-frame, steering box, etc. Does have the bars from the cage tied into the upper shock mount and front frame rail. Didn't know if hooker fenderwells or Proparts or another brand would work.