Hi, i just bought a new holley carb and a new non EGR weiand action plus intake manifold for my 84 Z-28 with a 350, my old carb was a computer controlled quadrajet. My question is will i have to buy a new distributer and which one should i buy?

 

Any non-computer controlled distributor with centrifugal and vacuum advance will work.

You'll also need some way to lock up the TCC in your 700R4.

 

Thank you for the help any ideas on how to lock up the TCC

 

A search on the transmission board will turn something up, it's been discussed any number of times.

 

TCC Lockup is pretty easy to do. All you need is a vaccum switch(GM P/N 14014519), some vaccum hose, and 18 guage wire. Check out this thread .

 

as for the dist, I just grabbed one from an '84 cutlass or something of the like. a stock non-cc one, then re-curved it with the crane kit, and shimmed the endplay with a mrgasket shim kit... about $50 CAD total, with the crane kit. now I just need a good strong coil.

 

Also, Do not foget the proper linkage and pracket for you 700r4 cable to work on the holey carb.. you don't want to burn it up. The lockup was discussed at length lots of places with diagrams even on how you can go about fixing it lol.

 

Careful, you're speaking in Canadian to a Yank.

 

DO NOT USE VACUUM LINE! That is the worst thing you could do! Get all you need is a switch to provide a +12 to the 'D' pin on your pig tail thats it. you also need a circuit that breaks the connectrion when the brakes are pressed. I dont like advertising them anymore, but Bowtie overdrives has these kits, and I built a wiring diagram for them. It's easy to do.

http://www.700r4.com/tech/tcc/index.shtml

Hmm, if you have a 700R4 from 84, then it's prob a series 1 or 2, you might need wiring for inside the pan. Again, this is all very easy to do. Hell, I can do it!


Also, you want to pickup a TV MAde Ez kit from them to make sure your TV cable is set up right, or you WILL lose your tranny. If you have a series 1 or 2 then that might not be a bad idea, i wouldnt go with anything other than series 3.

 

Every 3rd gen automatic has the brake switch already.

The vacuum switch disengages the TCC when under load in 4th. Not a bad idea, my '84 full-size Chevy van had it from the factory (along with one for the AC).

 

The reason they have two kits is because the brake switch has 2 pin outs, and if the second one is in use by cruise control then you use the relay. Or, if the brake switch only has 1 pin out. I myself will be using the brake switch.

 

Can you explain why vacuum line is the worst thing you could do?

 

Doh! I meant a vacuum modulator. It's not the best way to control lockup, the vacuum could change and unlock the converter when you need it to be locked up.

 

Usually when you have low vaccum you don't want the TC locking up. I've never had a problem with my vaccum switch.

 

there plenty of ppl running vacuum modulators that work correctly, I was saying it's not the best way. That's why GM ditched that setup for somethign better.

 

Yeah, IIRC now it's controlled by the TPS, which he doesn't have now.

 

You can't put a vacuum modulator on a 700R4. The function of the vacuum modulator on an older transmission is incorporated into the TV cable.

Using a vacuum switch (which is an entirely different thing from a vacuum modulator) to unlock the TCC lockup is perfectly acceptable. GM did it from the factory on hundreds of thousands of non-computer controlled vehicles.

 

why not just buy a different converter that doesnt need all that crap?

 

It's the transmission that needs it, not the converter.

 

so would mine need all that ****, cause im convertinf mine from tbi to carb or is it diferent?

 

Yup.

If you don't mind increased transmission temperature, shortened transmission life and reduced gas mileage you could do without it.

 

The easiest way to solve the non ccc stuff is to be simple about i.. if you start at one part, just go all the way... replace the 700r4 with a manual transmision. or a th350 / 400 and then you pretty much do not need to worry about it.

For myself.. I have my eyeball on a t-56. And if I can arrange it I will just grab a full corvette off a police auction and gut it out for engine and such. (you can gab vettes at some of those auctions for around 3500 for a 2003 vette.) I really do not car what it looks like as long as the front half of it is not crunched up like crap.