I had a 6 ported 13b with supercharger and the edderblock carbs but the engine die so i swaped the 6ported whit a T2 engine 91, but I want to know right size jets for it so it won't run dry.

 

Read a book and throw a lambda sensor on there. You'll be able to figure out jetting once you see what your AFRs are at various points.

 

Can one turn that carb 90*? Or would the rear rotor run too different from the front?

 

Even without the SC, turning it 90 deg would make one of the rotors always leaner or richer
than the other. It would probably fix the float issues tho Referring to the holley, not sure about
the edderblock.

 

Convert to 1:1 4bbl linkage, turn it 90* and mirror the jetting front to rear

 

I wonder if doing a 1:1 linkage would cause an air stall problem on top of a supercharger. I'm thinking maybe it won't. It's worth trying anyway.

The edelbrock has a donkey door over the secondaries that you might need to wire open for this test.

 

I've run an edelbrock mounted straight forward with no issues.
Building an ancient 650 spreadbore Holley next

Use a wideband to tune, jetting varies by location and elevation, no simple standard

 

I love the old-school look to this setup!