OK, so I looked at one of the injectors listed for that engine by RockAuto as a CM4362, which is shown as a Bosch
0-280-150-601, which shows as 48.5 lb·hr at 2.5-bar (36.25 psi) stock pressure. By standard calculations at 85% duty cycle, that injector will support 82hp with one single injection per-cycle.
We need 3 to 6 injections per-cycle (more than it was designed-for), and that takes more time, reducing total flow and the hp it can support. To re-state why, the I6 has really poor fuel distribution in its log manifold, and more injections really help to ensure more even flow to each cylinder, so some aren't lean while others are rich. The little Taurus does not have anywhere near the same trouble with manifold distribution.
Although we hope it's quicker than this; assuming 1ms to open the injector and 0.4ms to close = 1.4ms latency, for 6 injections would be 8.6ms wasted time for latency. At 5000 rpm we have 24ms for
two crank revolutions (one 4-stroke cycle) - 8.6 = 15.4ms for fuel flow, or 64%. 48.5 lb·hr x 64% = 31.1 lb·hr effective flow. 31.1 lb·hr can support about 53hp at 6 injections per-cycle (61hp with 3), with the loss of available time for each added injection.
That's the time factor with multiple injections from one injector, and the loss of total flow (hp support) as you add more injections. From this, we can see an injector to support about 100hp at 6-per, would be approaching 60 lb·hr. Increasing fuel pressure to 4-bar (58 psi) would increase flow to 39+ lb·hr, which still isn't enough, supporting about 67hp. Perhaps OK for a local 144 to 200 c.i., cruiser, limited to perhaps 3500-4000 rpm, if that's all you need. Two Taurus units with increased fuel pressure would get it, or one V6 CFI unit with stock 33 lb·hr injectors to max stock rpm.
The Sniper 1100 uses a 100 lb·hr injector, with less than 6 injections per-cycle. That's more than double the flow of the Taurus unit. You likely would not need that much, but you can see where you are in a gray area of not enough flow or not enough injections (or both) with one Taurus TBI. Hope that helps!