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ive got a quickfuel super street series 680cfm vacuum secondary carburetor on my 300hp crate 360 magnum. I’m running the Mopar Dual plane M1 intake and a 2 inch 4 hole carburetor spacer. The issue I am having is a missfire that starts around 2500 rpm. I’ve narrowed it down to cylinder 6 and...

which mechanical fuel pump is the best pump between the edelbrock performer rpm part number 1720 and the Holley pump part number 12-360-11 or the Quick Fuel 30-360. All 3 pumps say 110 gph the edelbrock is the most expensive at 150 and the Holley is 135 and the Quick fuel is 127.50. This would...

I'm running a 300hp crate 360 magnum, it has 20 thousand miles on it right now, it has 9.0:1 compression ratio, I'm running 16 degrees of initial timing and 34 degrees total timing. I live 4000 feet above sea level, I ran a compression test on it while warm with the carburetor wide open and it...

I've got a 300 hp crate 360 magnum engine in my 91 power ram 150, it was purchased brand new by my father in 2003 and I acquired it in 2010, it's a low mileage engine, it had 18,500 miles on it when I got it, and I have barely put 5000 miles on it. My father always ran 91 octane in it and said...

Does anyone here have any experience with the wix racing air filter part number 42096R? It is a 14 inch air filter that's 4 inches tall. So it's 14x4. Wix says it flows 600cfm plus and it has an HEE filter media. Would this be an ok filter to run on the street? I'm looking for a filter that...

What intake would perform better on a mild 360 magnum, The Edelbrock performer Rpm part number 7176 or the Weiand Stealth part number 8022. I know these intakes don't normally fit 360 magnums but the heads will be Iron Ram heads From Hughes Engines that have the La intake bolt pattern.

Who makes the best intake manifold gasket for the 360 magnum? I have narrowed it down to 4 different sets. fel-pro, victor reinz, edelbrock, or mopar performance. Another question I have, when installing new intake manifold gaskets, are you supposed to put silicone around the water ports on the...

Is anybody running an Hvh super sucker spacer on a 360 magnum? If so did you notice a reasonable gain in performance? I am considering trying one, but I don't want to spend the money if it isn't going to gain me anything. So thought I'd ask if there are guys here running one on a carbed 360 magnum?

I have a 360 magnum running a quick fuel super street series 680cfm vs carburetor on a dual plane Edelbrock Rpm Air-Gap intake manifold with a 1 inch 4 hole phenolic Carburetor Spacer. Over the last couple days I noticed my idle getting rougher then it normally is, So today I decided to see if...

I have some Holley Tbi throttle body's and some holley fuel controller boxes, one of the boxes is made by msd the other is made by icci. Both throttle bodys are the same, both have a number on them that is 34r-11109B. My father acquired this stuff years ago, i remember he ran it on a 440 in a...

Does anyone here know the part number for the dual plane mopar performance intake manifold, The intake that came on the 300hp crate 360 magnums? Is this a descent intake manifold? Where is it's power band? Is it idle thru 5500 rpm?

I have read a lot of different theory's on how to select the correct power valve for a holley style carburetor. I have read that if you have an auto you put it in gear and take the vaccum reading when it's in gear and divide it by 2 and that's the power valve you should run. I have read you take...

I was wondering if a bigger air filter can increase performance? For example I was running a dual snorkel mopar air cleaner assembly that came off a 1970 Plymouth roadrunner 383 car (I believe) Anyways the filter that fits in this assembly is a wix 42043 or a hastings af73. I have a 300hp...

I was told you are supposed to torque your power valve on a holley style carburetor, to keep it from leaking. I have a quick fuel super street series 680cfm carburetor and am wondering how many ft lbs of torque I should use to torque it? Or should I just tighten it up as tight as I can with a 1...

I have been expierncing a huge issue that has about drove me insane and has me very close to giving up on my 360 magnum. I have a 300hp crate 360 magnum in my 91 short bed half ton 4x4 truck, the truck has a non lock up A-518 transmission, I had to buy a lokar throttle valve cable to hook up to...

I have a 600cfm manual choke edelbrock performer carburetor that is not even a year old yet and doesnt even have over 5000 miles on it and i just noticed something that really pisses me off. The throttle shaft on the drivers side is leaking fuel, i sprayed carb cleaner there while it was idling...

I have a edelbrock performer 600cfm manual choke carburetor on my 360 magnum and i am trying to determine if the metering rods have any effect on the amount of fuel that my engine gets at an idle. I know the idle circuit is seperate from the primary and secondary circuit, but doesnt the fuel...

I have been thinking about getting a new carburetor for quite some time now and have had a hard time deciding wich one to go with. My engine is the 300hp crate 360 magnum, my intake manifold is dual plane edelbrock rpm air-gap manifold. I currently have a edelbrock 600cfm manual choke...

I just got a 4 hole 1 inch phenolic carburetor spacer and i am trying to figure out if it leaned my engine out or richend it up? Does anybody know if 4 hole spacers richen an engine up or lean it out more?

What i got going on is while engine is at operating tempature and in park if i rev it up to 2000 to 2500 rpm it will start to sputter and surge but then when i go up further to 3000 rpm it straightens out and stays good all the way to 6000 rpm. Also when i am driving it there is not surge at all...

I have been playing with the jets and metering rods on my edelbrock carburetor its a 600cfm manual choke afb performer. I'm trying to determine if its better to run bigger or smaller jets on the secondary side. For example i have .092 jets on the primary side and .092 jets in the secondary side...

I just purchased a book called how to re-build and power tune edelbrock carburetors and i was reading about the secondary clusters and it says altho they look the same they are not and must be placed in the exact same spot they were in. I recently pulled the secondary clusters out to clean my...

I am running the edelbrock performer 600cfm manual choke carburetor, i need to figure out wich metering rod is the next step richer from the 7047 metering rods that come in the 1405 edelbrock 600cfm manual choke carburetor. I am running the 7047 metering rods with the silver step up springs and...

I purchased an edelbrock book called how to re-build and modify carter/edelbrock carburetors by dave emanuel and it is saying i can quicken the opening rate of the afb secondary air valve by removing material from the counter weight. How do i do this? i took the secondary air valve out of the...

I am currently running a dual plane edelbrock rpm air gap intake manifold and a edelbrock 600cfm manual choke carb on my crate 360 magnum. I have been thinkin about buying the dual plane weiand stealth intake manifold. I have been told the stealth intake provides the best low end torque to the...

Are the k&n filters even worth running? I have been told they flow alot better then paper filters, but i have also been told they let alot more dirt thru then a paper filter as well. I have the stock air cleaner off of a 1970 plymouth roadrunner car with 383 big block 4 speed. It has 2 nozzles...

I bought a 1 inch phenolic caruretor spacer to put on my 360 magnum because the engine was showing symptoms of vapor lock, hving a hard time firing after been running for awhile and the fuel was extremley warm when exiting the carburetor. Anyways i put the spacer on tonight and started the...