Don't take it personal or anything. It's not really a matter of agreement or personal opinion. There are lots of posts on TGO where people kicked around the idea of running an single plane on a TBI setup. Unfortunately it seems most of them succumb to the notion that somehow a single plane means a noticeable sacrifice in low end torque and streetability. This could hold true with carbs like I mentioned because they are dependent on a consistent vacuum signal for fuel delivery, so you can't as easily have it both ways. With a carb you are forced to choose single plane for high RPM powa, or a dual plane for low RPM powa, knowing that there will be some compromise with either choice.
TBI or EFI in general just doesn't care becuase it's going to inject the programmed amount of fuel in regardless. That's the difference. Look at the LS engines for example.... The LS1/LS6 style is basically a single plane short runner setup. The truck LS intakes are fugly, but also resemble a single plane or high rise intake setup. So there's precedent here, the OEMs have embraced this thinking.
I think the problem is since TBI was basically a transitionary period from carbs to EFI, alot of the thinking, and even the parts are hold overs from the carb days..... Look at a stock TBI intake for example. Just a junky 2 barrel dual plane carbed intake basically...
Hopefully I'll finish building this 4L80 soon that's going behind my 355 TBI with a single plane... I forsee that it will embarass many unknowing victims from one stoplight to another, as well as rip stumps out of the ground while laughing it all off.
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