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Holley 4160 750fm/vac secondaries w/metering plate List # 80508-1 Pulling apart my holley 4160 carb on the secondary side and I noticed that the holley gasket was actually blocking off an open hole on the carb's main body. Can anyone tell me what the purpose of this hole is and if it should be...

I'm sure any parts store can get it if they don't have it in stock.

any mods done to the 440 or is it stock? If its stock I'd probably just stick with the one you've got or if anything just buy a new one depending on how old yours is since theyre not that expensive. If you upgrade to an electric or to a performance one you'd definitely want to consider...

yes clean it. especially if you are running an electric fuel pump

Can't really help you on your problem...maybe air getting in there somewhere? But I don't understand why you have fears about running a rotary vane style fuel pump? Up until recently, just about every OEM fuel pump was a rotary vane style. Now they're going to a turbine style which is a...

I'm pretty sure thats the one I bought a few months ago. Fit perfect in my 72 demon

do yourself a favor and flush out your gas tank/replace the strainer and filter before you install any electric fuel pump. make sure the pump is isolated using rubber bushings to help reduce noise.

Making it work harder. You want to have a coarse filter (as in the strainer on your sending unit) installed before the fuel pump and a fine filter installed between your fuel pump and your carburetor. Its a lot easier for a fuel pump to push fuel through a tight place than it is for it to pull...

I have that edelbrock 14"? air cleaner that you can pick up at most of the parts stores. Its got a drop base and clears fine in my 72 demon, 360 w/airgap intake manifold and holley 650 carb

I guess I'm not understanding the reasoning behind why I had a charcoal canister AND a vented gas cap...I mean why put an emissions device that prevents hydrocarbons from venting to the atmosphere and then also have an exit for them in the gas cap?

Just curious but how much did they quote you to clean it? Was it just a steam clean/boil the tank?

Yup got a few of the gas cap (is this a vented cap?), filler neck, and the vent line as it sits in the upper right hand corner of the engine bay. Anything else you need to see?

I wonder if mine might be like that. I haven't really had a chance to get underneath the car and trace the line back all the way to the gas tank but as of now the charcoal canister is removed and the metal line is basically just sitting there unhooked and has been like that for some time. I...

Thanks, is there any particular reason why? I'm guessing so gas doesn't flow out of it?

I dont really want to buy a new gas cap as I already have a nice body color painted one installed. Demon 408, I'm a little confused on what you mean by it having to be higher than the filler neck... Does where the vent line 'end' have to be higher or does it simply need to reach that height...

Have a 72 demon that was originally a /6 225 with the charcoal canister in the engine bay. I put in a 360 and removed the canister but I'm not sure what to do with the line that ran from the gas tank to the charcoal canister. As it sits the line is still in place running up to the engine...

same here, no problems

Go to autozone and rent their fuel pump installation kit. Comes with lock ring removers, brass punch and a rubber mallet among other things

I'll have to check on that. I didn't notice it last time I was underneath the car but I also wasn't looking for that.

I'm also getting a slight stumble when starting from a stop. It feels like I need to ease into the gas or else it will die.

Ok I'm hearing plug the line and don't plug the line... If I were to plug that line and then get a vented gas cap would I be in the same situation I'm in now or are the caps somehow metered? What does a vented cap look like by the way, just want to check and see if I have one or not. Mine is...

Well after years of owning my 72 demon and driving it only a few hundred miles I finally went out and fixed my broken gas gauge by replacing the sending unit. I took the maiden voyage to my local gas station and filled her up. I think it took around 13 gallons or so (it was basically empty...