TTI long tube headers and holley motor mounts
Pretty hard to say. I think you would have to buy a set and see.
I know that motor is forward about 1.75" with the Holley mounts while the TTI's are designed around a stock location. This alone makes me really doubt they will work if for no other reason than the headers probably won't clear the steering.
I know
@Dantra used mounts other than TTI's with TTI's shorty headers and had issues with the DS motor mount and header so my gut says if there is an issue other than the steering, it will be with the DS header clearing the mount.
Here are some pictures of my DS Holley header and motor mount so maybe you can compare.