Highest flowing sbm heads?

Over here in NY … (edit) Florida!

Very handy but slow as **** these days with back issues.
(Such a joy!)
But the question wasn’t answered. No biggie. It’s just, well the brackets and such to fit it in is one thing only followed by exhaust considerations. Now, do we keep the computer?
Acquiring the HEMI is one thing. Getting in and running is another cost. Holley has a stand alone HEMI 6 computer IIRC. While I’m sure someone has done it and screams easy it was!
The in and outs I’m not familiar with.

I’m neck deep in LA & a few B blocks to play with. I’ll stay here. Otherwise it’s just like throwing money out the window to start over and get in the learning curve.
I'm happy with the old builds and I go slow, real slow. I spend little, very little. But I have big fun, lots of fun. :)