looking for as much info on dual throttle body BBC EFI

grumpyvette

Administrator
Staff member
Ive had a couple requests for info on running a dual throttle body EFI set-up on a tunnel ram intake,ON A BIG BLOCK CHEVY kind of a dual quad EFI version of a tunnel ram, that will obviously require modifying the tunnel ram manifold , adding injectors , fuel rails and dual throttle bodys and a computer control and sensors.
and knowing that several of you guys know more than I do, about EFI, controls, I figured I just ask the experts in that area rather than potentially post the wrong info,
could you add a good bunch of related info on this thread on this site, and post just some basic back ground and possibly part numbers of what HOLLEY or some other manufacturers have currently available to allow use of what would effectively be a (dual quad)set up people could use to build a multi port EFI system with something similar to the 491 BBC doug built, listing matching sensors, throttle bodys, controllers wire harness etc.
Doug_F.jpg

EFI-tunnel-ram.jpg


http://www.holley.com/data/Products/Tec ... 72rev4.pdf

http://www.holley.com/division/Holleyefi.asp#2

http://garage.grumpysperformance.com/index.php?threads/460-and-tunnel-ram.14432/#post-74552

HOLLEY lists an LS based dual quad style EFI system but Im not 100% sure of the parts required to make something similar work on a modified big block and if parts ordered would work, obviously
Id need an efi controller, matching sensors two 4 barrel throttle bodys wiring , injectors ,etc
does HOLLEY or WIEAND currently have a BIG BLOCK DUAL QUAD TUNNEL RAM INTAKE thats easily converted to MPFI

yes theres other options

bbccustin1.jpg
 
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Still at work Grumpy.
I will get a hold of a friend that's real strong in custom one off EFI Layouts.
He can post here. A member too.

FAST XFI in new black anodized case be my choice of of EFI Contollers. Good for up to 16 injectors.
True camshaft sync controlled injector firing.
Not batch fire.

Electromotive EFI Great too but expensive.
 
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