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Old 12-08-2002, 08:10 AM
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Post Ok can someone help me with a question about my engine swap plz?

Alright, ive got a 1984 Z28 Camaro (had a 5.0 H.O) until i pulled it out it was blown. I have a 350 i had rebuilt(bored .030) Ive got headers for it also. I am using the intake from the 5.0 and most other parts.. oil pan, alternater ect ect. Ive also got a Th350 im going to use instead of the 700r4. I've got an adapter from Jegs that lets it fit. Ive heard that i need to do away with the computer and get a new carb..How would i go about doing this, What are the pros and cons of doing this, what kinda stuff should i get (carbs) I have a Q-jet right now(4bbl) I think that is about it, Is there anything else i will have to buy or do? This is my first engine swap, im only 17 and im hoping it goes well, Thanks

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Old 12-08-2002, 08:23 AM
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You can`t use the computer with a larger displacement small block without getting the computer recalibrated for it. so the computer is a no go. I assume your Q-jet is the feedback type. I would dump it and get one for a 350 without the computer hook ups on it, but your stock carb should be okay for the time being, it will let it run without the computers instruction, it maybe a tad lean, but as long as it`s not too lean it`ll be okay. run your carb first and do a plug reading, if it`s white it`s too lean. another thing is, do you have a non computer controlled HEI? You`ll need to get a older HEI with mechanical and vacuum advance. Your HEI will work, but it will not advance without the computers aid, and the engine will be a slug. other than these things, it`s a pretty basic swap. Good Luck.
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Old 12-08-2002, 08:28 AM
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About the HEI thing i have no clue honestly, hehe i thought i just just switch blocks and be off in my new beast lol
Should i goto a junk yard to find those parts you said, how will i know what to look for? SOrry for all the dumb Questions
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Old 12-08-2002, 08:44 AM
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HEI, High Energy Ignition, Yep, the junk yard is one place to get a HEI, one out of any older small block will work, but I`d check it closely before I left with it. and Likely, it will need rebuilt, but in most cases, i`d just replace the pick up coil, module, rotor, and pick up a Advance Curve Kit and use the light springs, the mechanical advance is under the rotor, make sure it moves freely and doesn`t bind any. you could pick up a Q-jet from the junkyard, but If i was you, I`d buy a remanned one, anytime water sets up in a Q-jet you can count it out. you can go to northern auto parts web site and check out there HEI`s if you don`t want to do the junkyard route. Price wise, you`d prolly come out the same.
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Old 12-08-2002, 07:55 PM
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you can tell the non computer controled distributer from the computer one by the wiring harnesses. the non computer controled one only has 1 wiring harness that plugs into the distributer cap. Your 84 model has 2 wiring harnesses. the other is for the computer. It'll run like crap if you try to use the 84 distributer without the computer. I'd dump the whole Q-jet idea. You'll be much happier with an Edlebrock 600 cfm carb. Don't think bigger is better and get the 750. it's too big,you'll load up. good luck
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