GM tbi throttle body (which one ?)

[hogwagon]

I'm making the plunge to put GM tbi on my 85 GW - 360. The junk yard I'm working with has several throttle bodies to chose from (already pulled). What do I look for to make sure I get the correct injectors?

[pb]

See this post:

http://www.ifsja.org/forums/vb/showthread.php?t=27956

In regards to your other post, you still need a AMC intake, not GM. Edelbrock Performer is good, plus a lot lighter, but you could still use the stock one if you wanted.

[derf]

I'm making the plunge to put GM tbi on my 85 GW - 360. The junk yard I'm working with has several throttle bodies to chose from (already pulled). What do I look for to make sure I get the correct injectors?

Get one from a Chevy 350 V8. The 305's injectors are smaller and won't support the 360. The 4.3's injectors are even worse. If they have any from a 7.4 V8, tell me how much they want for them and where they are. I'd be interested in picking them up if they have any.

[hogwagon]

Since they are all sitting on a shelf, how will I know which one came off of a 350 vs a 305? Are the injectors marked such that it is obvious?

[Woodchomper]

You should try to get everything off one vehicle. Besides, it is probably cheaper that way and you'll be sure the wire harness matches the computer.

Here is a link to a chart of GM TBI injector flow rates from DIY-EFI list (http://www.diy-efi.org/gmecm/component_info/tbi_injectors.html)