KB or Indy would/will be one of my choices...But I would order the Indy thru a good dealer as opposed directly from Indy. They can be less than helpfull on issues they own.

I believe World got into a little trouble on their Chrysler blocks, so I am curious as to whether they still make them. Also, my experience with them was worse than my experience with Indy...

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk