Hi Jason,
Wow, I feel like I could write a book on this....
I went from Rochester carb to multi-point FI and now to TBI.
Yes, a computer is required to run the fuel injection, and this part is a bit complicated. But, the upside is that the mechanical side of the TBI is way simpler than any carb.
On the computer side, you've got two approaches:
1) use a tunable computer that can be setup with a laptop or handheld.
2) use a factory, non-tunable computer and get a custom PROM made for your engine.
I went with option 1, as the computer side of this doesn't faze me at all.
However, don't underestimate the amount of time to fit up EFI to our inlines. There aren't many off the shelf parts to solve every problem, so a lot of thinking and fabrication is needed.
The eventual upside is much better starting and cold running (just like a new car).
I'm starting to think that dual TBI is the ultimate arrangement, because of the equal length runners to each port. Maybe I'll get here one day.
Greg
