Because the turboes are reasonably cheap and its a way to add some midrange power, I think it is suitable for a smaller engine like a d-series, but for a b series you will have drop off up top.
IMO, I think you would have been better off with a t3, i got mine for 75 bucks in excellent condition, i got lucky. You can find then for >200 in decent shape. It's up to you what you do, the 14b will work just not as good as a t3 or better turbo.