So my car just got finished up, its an 86 gt 4 speed and the engine is out flowing the intake so i want to upgrade, the dual throttle body intake from tlg was too expensive, and truleos are no longer made... so are there any others out there until i can R&D a set of ITBs.

Mod list:
Bored .030 over
Decked .040
flat top pistons
double roller timing chain
3.4l high volume melling oil pump
honda cai
fiero store performance valve springs
comp cams 260h cam
ported intakes and heads
deshrouded valves
full head job
1.52:1 roller tip rockers
sprint headers(soon custom long tubes)
no cat
flowmaster 80 series muffler
egr delete
cold start injector delete
7730 swap-chipped and tuned w/ innovate lc1 wideband
eibach pro lowering kit
full poly suspension and engine and tranny and cradle mounts
kyb gr2s and gas adjusts
rear addco swaybar
black 17s wrapped in bfg gforces
wahlbro 250lph fuel pump
arp head studs
10:1 compression

car runs great and handles even better, i just need a higher flowing intake
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[This message has been edited by dmcgreene (edited 03-05-2013).]

Some Info here:
http://www.redline360.com/g...take-which-is-better

Member Dawg made a really cool mod. Grantman did the same thing, and I plan on following Dawg's lead.look them up in search. A really trick idea.

the stock fiero canister air intake has Dyno proven superior to the hose with an air cleaner on it ! they hurt performance..
Its no contest ,,you can make minor improvements to the stock air cleaner system,, rodney has a modification that may appeal to you..
If serious insulate the hose & canister from heat ,use Rodney Dickman devise,because of the bottle neck in the intake plenum any
cooler air helps ..
K&N filter helps a minicule amount!!
I think Dawg has a modified stock intake where he opens up the stock plenum by welding in a larger opening !!

[This message has been edited by uhlanstan (edited 03-05-2013).]

Nobody is talking about intake tubes. The OP was asking about intake manifolds.

You can cut open the neck on the Fiero upper plenum, and then weld it back together with a bigger opening, to eliminate that restriction. Or you could go turbo at 5-6 PSI, and just force more air in.

i disagree about the factory cai, but i dont feel like argueing about it lol, and also the factory intake manifold isnt worth my time or money, so im lookn for aftermarket or may ideas for a one off

You've spent a lot of money already you might as well open the wallet wider. You need to have someone make you one of these. Good luck getting one made for under $1,000.

hmm, thats not bad, i was planning on spending 3 to 4 grand on itbs

3 to 4 thousand...But the TLG intake was too much money? ITB's are cool, but annoying to set up and never run 100%

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well too much money for what it is and the itb is are a long term project, id like something better to run this summer at bristol dragway for the streetfights

http://www.v6z24.com/pictur...rboz24/turboz243.jpg
This would be a good one and not too expensive.

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85 GT 3.4
14.9 @ 90 1.9 60' Old TH125/3.06
Unknown New 4T60/3.42

There are lots of very easy intakes to be made, just take a long look at it and see what may fit your needs. This is what I did:

[This message has been edited by trotterlg (edited 03-06-2013).]

quote Originally posted by dmcgreene: So my car just got finished up, its an 86 gt 4 speed and the engine is out flowing the intake so i want to upgrade, the dual throttle body intake from tlg was too expensive, and truleos are no longer made... so are there any others out there until i can R&D a set of ITBs. Mod list: Bored .030 over Decked .040 flat top pistons 3.4l high volume melling oil pump fiero store performance valve springs comp cams 260h cam ported intakes and heads deshrouded valves full head job 1.52:1 roller tip rockers sprint headers(soon custom long tubes) arp head studs 10:1 compression

On a side note, your camshaft seems a bit mild for your engine setup. IMO you need something equivalent to the Crane H272 (or just add 1.6:1 rockers to your existing setup).

That is the one thing about a 60 degree engine that is not easy to over come. To bad that you can't get a victor intake for them. Back before they went FI you could get HIPO carb intakes for them. But that was a long time ago.

quote Originally posted by dmcgreene: i disagree about the factory cai, but i dont feel like argueing about it

No need to argue with fact. The stock air inlet system will flow more air than your 3.4 will ever be able to use.

quote Originally posted by FFIEROFRED: That is the one thing about a 60 degree engine that is not easy to over come. To bad that you can't get a victor intake for them. Back before they went FI you could get HIPO carb intakes for them. But that was a long time ago.

Edelbrock still makes their Performer brand intake for 2bbl and 4bbl 2.8 V6.

quote Originally posted by olejoedad: No need to argue with fact. The stock air inlet system will flow more air than your 3.4 will ever be able to use.

3.4? i have a 2.8

Plenty of flow.........