ive been thinking bout gettin a new throttle body,(52mm or 58mm ??) for a 305 TBI
What do you guys recommend and what are the prices like,

Thanx

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91 FireBird 305 V-8
no true mods,
ghetto rigged cold air intake,
People dont have a soul, its just something parents made up to frighten little children, like the boogie man, or micheal jackson..."

GheTTo Riggers INC.
We Make Mcgyver look Like Crap

 

TBI or TPI ? Makes a big diff.

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Mike

'90 IROC-Z , 5-speed, ZZ4, G1 Trick Flows
Moderator SEThirdgen

 

AAHHHHHHH
I could never telllll
its got two little dilliowacks on top of the whole assembly that are made of plastic,
grr.... hmm and way to really tell? i think its tbi because its on top of the throttle body

 

TBI looks more like an electronic carb. TPI is completely differant. Someone once said that it looks like a spider humping the intake manifold.. I personally like the way TPI looks, but it is expensive to upgrade.


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91 Camaro TPI, 355ci. Sportsman 11 heads, LT-4 Hot cam,Pete Jackson gear drive, on,and on, and on... 13.6 @ 102.5 with a 2:73 open rear, no traction, no tuning, no practice.

 

I just read the post again, I did not take it the right way the first time. 52mm and 58mm throttle bodies are for TPI only. TBI is measured at something like 1 5/8"s factory, I could be off, but aftermarket units are around 2". Holley makes one, GM does also if you can find one from a 454TBI, I think you will need to port the manifold match the larger TBI.

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91 Camaro TPI, 355ci. Sportsman 11 heads, LT-4 Hot cam,Pete Jackson gear drive, on,and on, and on... 13.6 @ 102.5 with a 2:73 open rear, no traction, no tuning, no practice.

 

52mm or 58mm TPI throttle bodies will not work for a TBI. The stock TBI throttle body is 1 11/16" in diameter, I think... You can get a GM 454 2" throttle body, or a Turbo City 2" throttle body, or a Holley 2" throttle body, all for TBI.


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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

What do the prices range usually?

 

if your talking about TBI, theres a holley on the classifieds right now I think, new the Holleys are about 300

 

I have a Holley 670tbi for sale and I live right next door! I'm asking $200 for it. I also have a brand new matching Holley TBI intake for sale.

 

aahhh, another neighbor,
how old, condition, reason for sale, how was performance, and depends if you still have it when i recieve cash, and what do you others think of the holley670?

 

ooh fergot to ask, whats the best/decently priced, FInjection?