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when i used a carb (750 AED HP with Aluminium main body - now EFI) i had the same situation. I could only get it to idle good with the IAB´s completely removed......after getting some blanks for the IFR´s i drilled some smaller ones (0.031" if i remember correctly, still written on the inner...

oh, my comments are in german.....for those who do not understand german....everything´s fine, that was an easy one, i like it so far! Michael

Hi Guys, just wanted to share.....made the Switch from 750 AED DP to Holley Sniper EFI. Put a sump in the stock tank, put electric pump and EFI filter in, made new lines.....today absolutely first start of the engine with all new Setup (EFI and Victor single plane intake)...did not run since...

is the 800AVS² available now? If so, this would be my choice. Michael

here it is again: http://www.demoncarbs.com/1901.asp Michael

That´s very good news in my opinion. FItech and now holley make it more and more attractive to change to Injection. What i really like about these systems is, that even in a boosted application the fuel management will give you no trouble (at least from the paperwork ;-)). Michael

post #143 and 184 for example.... Michael

is your pressure gauge liquid filled and near the engine? When the fluid is getting hot, the gauge does not show the correct pressure... Regarding Idling: clean the air bleeds on top of the carb, check initial / total timing and close not used vacuum ports...what´s the idle speed? Michael

check your ignition timing, the vacuum advance is hooked up to manifold. Normally this is only done with pretty big cams..... Michael

Hi buschi, to me it seems pretty modified......dont know if this is good or bad. What is the adjusting screw on top of the metering blocks? Never seen this before. Edit: just saw that the original metering blocks are still there, could be sth. Like adjust-a-jet block.... Standart holley...

Hi buschi, to me it seems pretty modified......dont know if this is good or bad. What is the adjusting screw on top of the metering blocks? Never seen this before. Standart holley parts should fit. michael

Hi, i´m in the same boat with my AED 750. Even after completely removing the IAB´s (the outer ones in the carb body) it´s running pretty rich at idle. I will change the Idle feed restrictors in the metering blocks to smaller ones - i think that is possible with your carb, too. This thing must...

difference is the secondary air door.....AFB counterweighted, AVS spring loaded.....otherwise they should be pretty much identical. Did you compare the stock metering rods and jet sizes? I think it´s true what blownhemi said. There should be a bigger Version like 950 cfm. At what rpm did you...

my car ran 12.2 with the 750 cfm EDE carb, #1407. It´s a 68´Valiant 2dr, 408ci sb. I´m pretty sure it could pick up a little with the 800 cfm carb (AVS or AFB). Meantime i replaced it with a 750 Aluminium HP Double Pumper from Holley, best ET so far 11.9, still tuning. This was with some other...

http://ls1tech.com/forums/attachments/carbureted-lsx-forum/371730d1347241614-i-think-i-just-found-carb-problem-i-have-been-chasing-idle-feed-restrictors.jpg here you go......as far as i know these ifr´s can sometimes be in different locations, but this should give you an idea. Michael

Idle Feed Restrictor....two in each metering block, another orifice to meter the idle fuel. Most billet metering blocks have these screwed in, so they are replaceable. My Carb is running too rich at idle, did the same when putting in gear. After completely removing the IAB´s it´s running...

tony was talking about the jets. And he´s right ;-))

yes, it´s possible to set the idle speed with the secondaries. Michael

Cory, i do have a 8.5 PV you can test..... michael

What´s the problem with the carb? I´m by far no carb guru, but if you have a A/F gauge these carbs are pretty easy to calibrate. I´d suggest getting one or borrow one from a friend. Michael

Here´s a nice comparison: http://www.carcraft.com/techarticles/ccrp_1210_seven_budget_carburetors_tested/ I miss the DP´s, but it´s interesting for sure! Michael

Innovate offers a tail pipe clamp for their products - i´m sure they can tell you if it works correctly. http://www.innovatemotorsports.com/xcart/product.php?productid=16141&cat=271&page=1 Michael

Nice Carb, especially for the 300 Bucks....i like it, too. Let us know how it performs! Which fuel line did you use ? Michael

Sireland67, did you do some tests with your new carb? Michael

try the next stiffer step up spring for the metering rods. It seems that the vacuum is keeping the rods from moving into the power mode. I´d try to lean out full throttle, too. No need for AFR 11 in a NA application. Michael

cool, just let us know how it works! Michael

Thanks for the feedback. So there are some of these out there, as far as i read they work very well. So i just have to make a decision....Thanks so far! Michael

nice, please let us know what you think about it once it is in the car and running! Michael

i´ve seen some videos on youtube, also summit lists them with "shipping today"....so i think this is not a problem. Michael

Hi, i like the idea of the street demon carburetor, tempted to buy a 750 for my street / strip engine (70/30 street strip use). I know they did not invented the wheel, it seems that it´s just a good combination of some proven carburetor designs like the Carter AVS, plastic fuel bowl like the...