A TBI setup would involve a computer, EFI fuel pump, etc. Not really an easy swap. If you are going through all the effort, you might as well use EFI hardware from a 5.0
You could always do like me and use a megasquirt ECU to control it, but you won't find any junkyard TBI's that you'll like. I ended up with a 4bbl holley TBI.
You could always do like me and use a megasquirt ECU to control it, but you won't find any junkyard TBI's that you'll like. I ended up with a 4bbl holley TBI.
Where do you have that information from? It has allways been my understanding that those are 670cfm like the 2-barrel Holley Pro-Jection, measured at the SAME 1.5Hg pressure drop as 4-barrels carburators. They have big 2" throttles, or am I wrong here?Rusty67 said:
And the smallblock TBI have 1.625 throttles and flow 480cfm.....or?
Remember that they don`t have a venturi, making a restriction in the bore like a carburator. I know a lot of people says that the flow are measured at 3.0Hg like a 2-barrel carburator, but all literature I have seen says 1.5Hg....and see this: www.thirdgen.org/techbb2/showthread.php?s=&threadid=194984&highlight=cfm
I think the cheapest system would be an used bbc Tbi body or an 670 Pro-Jection and Megasquit as the brain. If you are dealing with a lot of hp, the 2 injectors can have problems flowing enough fuel. Some people running with raised fuelpressure on the system (a lot) without any problems. Or you could use a 4-barrel Pro-Jection throttle body.