Norm Peterson

If your carb leaks fuel into the manifold when the engine is stopped, something needs correcting. You've got a bowl vent or two to handle most hot soaks and prevent pressurizing the bowl(s).

I can't claim to be a TBI expert, but I don't see fuel being injected into a wet-flow manifold at low pressure with the engine turning at ~100 rpm as being all that different from letting it dribble out of a carb under the same conditions. The start-up enrichment method is different, but not the end result of more fuel being delivered. TBI start-up enrichment can be reduced/switched off sooner, and MIGHT be slightly leaner, but TBI doesn't avoid the necessity to be rich, nor does it at allcontrol the wet fuel flow and/or puddling that's downstream.

If he'd said "multiport EFI", I'd agree, as the pulsed sprays are sized for one cylinder and aimed at specific cylinders. IOW, one cylinder never has togulp down three cylinders (or more) worth of injected fuel just because it all happened to flow that way at the right (wrong?) particular instant.


Norm