Aftermarket FI options for Type 4 motors 2056 or larger, Who here has gone this route and is it worth it? What options do we have? Options

[DRPHIL914]

i started looking into this 2 years ago when i was planning my rebuild motor after the drpped valve seat on the OEM motor.
I ended up building a nice 2056 with increased compression, brand new heads, counter balanced crank and of course the cam is performance minded as well.
to start i installed the d-jet and later last year i added a 50mm bored out stock throttle body from Tangerine/Chris Foley. Yes this helped a great deal, but we are still limited due to the d-jet and the MPS. So there are a few people out there that make ITB( independant throttle body) that could be used.
One is Jenvey, and i see that PMB is carrying those. It looks ike they are mated to what ever IDF intake manifold you choose. there are 40, 45, 48 options. mated with 350cc injectors.
I am wondering other than the CB performance stuff that has been available for a while, others have come to the table, who here has played around with this ? over the years ive read a lot on others using the megasquirt and micro etc and it seemd they were very difficult to tune and set up with lots of problems, trial and error.

I am looking for advice on what to stay away from and what are the pitfalls and mistakes we can avoid before jumping into this.

Look forward to some input, thanks!!

Phil

[emerygt350]

I work with early tbi (CFI in the ford world). It really is better than carbs by a long shot. Poor fuel distribution is a manifold issue (just like carbs). Mpi is better of course but I wouldn't go bragging up our bank fire system. Runner length is still up in the air for me. Velocities are so high and engine heat eventually gets there as well. Obviously mpi would be better but I just don't by it as a show stopper. Modern mpi engines can have incredibly long runners.

[Jack Standz]

I work with early tbi (CFI in the ford world). It really is better than carbs by a long shot. Poor fuel distribution is a manifold issue (just like carbs). Mpi is better of course but I wouldn't go bragging up our bank fire system. Runner length is still up in the air for me. Velocities are so high and engine heat eventually gets there as well. Obviously mpi would be better but I just don't by it as a show stopper. Modern mpi engines can have incredibly long runners.

+1

(not bragging about the bank fire system nor unfairly cricising an almost 60 year old system, but someday would like a better FI system that doesn't require gobs of $$, hours & hours of fabrication, and an intensive understanding of engineering and electronics to make it work right, just saying)

Maybe a dual TBI system with appropriate length intake manifolds would be an improvement over what many are running now? Maybe I'm dreaming, but the idea of bolting on a couple intake manifolds and throttle bodies & hooking up some sensors (OK, welding on a couple O2 sensor bungs) sounds really good to me right now especially after restoring, rebuilding and tuning a couple Dellorto carbs.