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I did a compression test yesterday and I got some numbers that were quite high on some cylinders. The two cylinders with lower numbers were in line with what is expected. I believe I have deposits built-up in the combustion chambers. Anyone have a recommended product and/or procedure to remove...

Yep, that's correct. My car may not be a valid comparison

The advance diaphram in my 74 318 is almost parallel to the engine crankshaft. Compared to my car, your timing would be way off. If this comparison is valid, and your timing light is showing 10 degrees BTDC, then I might start looking for a slipped distributor timing gear or a slipped timing...

I have some ideas. I hope they help. I have the same 2bbl/318 set-up on a '74 and I am having some idle/surging issues that I have been solving. I suspect you may have more than one problem. First, I would do what has been suggested above: check for vacuum leaks. All hoses. If you have...

Great! My beast has no pull in second gear. That, and from the hesitation I had today with the cool weather, I can tell some adjustments/changes are needed. Waiting on new jets and the o'haul kit so I can go into the carb. I have some new advance springs...

I found this "out there." So if your memory is correct, I have 0.092" jets. I just ordered new 0.095" jets off of Ebay. If your memory is incorrect, I'm out all of $10.00 (which includes shipping). Do you feel lucky today, Punk? Well, do you?:D Thank-you for the help.

This could indicate that the gasoline has ethanol in it. Ethanol has a very high octane rating. But ethanol is also very volatile so it evaporates quickly and leaves the lower octane components of the gasoline behind. Other high octane blending components, such as FCC gasoline, alkylate...

Yes. Appreciate the info. I can order different sized jets for this carb from some specialty vendors. To get the current jet size I have to tear into the carb to find the numbers. I was hoping someone knows the jet size before I tear into the carb so I could have the larger jets available...

I have a 74 Valiant with a 318. It has the stock 2 bbl carb - it's a Carter BBD #8028. Does anyone know what jet size (jet#) is stock in this carb? I want to order the next larger size jets and have them available for when I o'haul the carb.

I'm a chemical engineer in a refinery. Here's what I know. Many brand name premium gasolines will have superior additive packages to regular gasoline. This may include anti-gum additives. Save yourself some money. If your gasoline will be in your tank longer than a month, use a product...

Thanks! I figured it was looking at air intake temperature from the mounting location.

I have a stock 74 Valiant 318. Vacuum for the distributor advance is routed from the carb to a module on the air cleaner housing then to the distributor. What is the function of the vacuum module on the air cleaner? Carl