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Carburetor for 67' Camaro w/396.......  
danreid
New User | Posts: 1 | Joined: 10/06
Posted: 10/26/06
02:05 PM

My wife and I have a 67' Camaro, with a 396 in it.  The bottom end is stock.  On top we have a set of dart iron eagle heads, the intake is a GM aluminum dual-plane (# 3933163).  I was told the intake is off a 427 copo camaro motor ??????  The cam is a lunati voodo, the duration at 50 is 219 IN, 227 EX, LIFT IS 530IN-542EX, headman headers, the distributor is a accel performance #52100, with the super coil, stock trans, stock converter, 373 gears, pete jackson gear drive set at (0).   I am having a problem with the carburetor from a dead stop take off, it wants to die.  It is a edelbrock 750 I have changed the rods,springs, jets, squirters.  The carb runs alot better now but, it still bogs real bad at a dead start.  I have called the tech line for edelbrock, holley, and demon. I called each of them 3 times, and each time I adifferent carburetor was recommended to me!!!!!!!!!!!!  Can you please tell me the best carb for our camaro.  Oh, before I forget, I would like to be able to drive the car to the track for ets on Saturday, and turn around on Sunday and drive it to church.   Also, my wife loves to drive it when it is running ........ PLEASE HELP!!!!!    DAN       


 
bottlefed
New User | Posts: 48 | Joined: 10/06
Posted: 10/26/06
08:11 PM

hey, got a couple questions to help you or others of the board to chase this down. is it the actual "tip in" of the throttle blades, or, is it an issue that also occurs when you return to idle speed... like slowing for a stop light? and i know with as much research as you have obviously done, i hate to even ask,  is the accel pump shot timed good with the tip in? -any movement from contact with the linkage and idle screw should offer pump shot. you have a good carb, and yeah dialin' in is the worst, but as different recommendations as to which to actually use, well... i'd say skip a lot of that, it's loads cheaper to dial your existing parts. another question coming to me would be timing??? where is your initial (idle,no vacuum ) set? i have a 396 block and ran an older crane hyd. grind (218/218, .515/.515,114 lda ) i got the engine from a guy i knew for a while and he said it he thought the lobes had gone, turned out that the advance n the dist would come in really slow and some times stick. you've mentioned a part no. on your dist so i'm guessin' it to be too new for that type issue (check anyway!) just use the timing like as normal and rev the throttle a bit as you view the timing mark (location should move more toward the twelve o'clock postion as rev's in crease.) a common poblem withthese older motors ir that the elastomer rin slips inside of the outer balancer ring giving screwy timing results...


after finnaly finding out what was happening and wht condition the bottom end of my motor was in i went back to gether close to stck, keeping the crane stick. it's really a basic build, cast#206 oval small chamber heads, cast 10.25:1 pistons, new balancer ,(and found TRUE ZERO for the timing tab) a double roler timing set, a performer2-0 intake,bone stock gm replcement style hei, 750 vac sec holley carb. even use the stamped rockers. its dead on reliable, reason i told you all that was so you'd look at timing as being just as much a contributor to this type of prob as the carb.


 if you do happen to have the closed chamber pistons and have not don more than square the block, you aren't at the advertised 10+1:comp they say you are i went with good exhaust seats for todays crappy gas, run a stock convertor, and 3.08's in the rear. the car weigs 3400 with me in it and does't give fits over 89 octane.its a cruiser,


 as i read your entry you say it "bogs real bad" has lunati suggested a slightly looser convertor for this stick? of, course this goes well beyond the carb and timing issues but merits a check, if nothing else. another "bogger" question on the smaller rat would be is thing runnin' square ports?


with more info guys here can help you with exeriences they've delt with along the way of their buildups. i hope i can help or possibly have.


 good luck, i'd really like to hear how you come out on this. with my app i run 8deg initial and 30 deg in the dist, but the curve is slow. doesn't make for stompin' track times but keeps me out of trouble at the pump.

 

 
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