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I run a Clifford shorty 4v intake and headers on a slant 6. When I got the car I soon discovered living on the coast and temperatures dropped below 55* on a humid day drive-ability was bad, would not idle, and drank fuel like the tank had a hole in it caused by carburetor icing. I used some...

It is time for a carb rebuild.

Holley0-7448 http://www.holley.com/0-7448.asp Stock out ofthe box jetting for 0-7448: http://www.holley.com/data/Products/Technical/199R7950-7rev6.pdf I wouldstart with stock set up.

Thanks Charrlie. Stock steel gasket is the one I was thinking of.

Tread theft occurrence: Charrlie, this is interesting, as the other board has advised me to have fresh surfaces when using a factory steel gasket. Thisfresh surface biz has always had me wondering how Chrysler serviced theseengines when in need of warrantee head work; did they use a steel...

How are you going to connect PCV?

After seeingshort trips, never fully up to operating temperature, I suspect this is theproblem. Some rawfuel always finds its way to the oil pan at cold start up, and accelerator pumpshoots before manifold is fully heated contribute to the problem as well as allthe fuel won’t stay in...

Check for carburetordribbling raw fuel into intake manifold after shut down. Summer heat sometimes causes excessivepressure build up in fuel bowl and or boiling of fuel in fuel bowl forcing rawfuel be purged eventually ending up in crankcase.

Per American Standard Catalog of American Cars 1946-1975: Page 296. Dart GT series, Note 1: Some 35,000 (nearest 100 units) Dodge Dart GT and GTS models were built during calendar year 1968. Of those, 10,900 were sixes and 24,100 were V-8s. All GTS models were V8 powered.

You need to measure combustion chamber dimensions, employ a compression calculator to design your performance up grade. As stated above; “Have some work done”, includes gasket matching, mild porting, oversized valves, larger diameter exhaust, and most likely a camshaft up grade. A...

Old gas will often cause a valve to stick. Once valve won’t move something has to give, often it’s a push rod. Stumper: It’s a 71, and photos appear to show solid lifter rockers; no collapsing. Over revving can bend push rods.

This in indication that radiator is partly plugged causing a pressure drop on lower hose.

Where this car has not been run for several years chances are good that there the rings need to be run in, and most likely the valve lash hasn’t been adjusted for the last 50K miles or more. Where that car is a 1965, and probably has not been fitted with hardened exhaust seats once...

This fan modification is not necessary if radiator and rest of cooling system is clean and holding pressure. These slant cars ran for years without over heating with a four blade fan. Shroud was used on air conditioned cars.

Yah have to keep 50/50 anti-freeze mix in cooling system, and change it every several years to prevent corrosion problems.

Suspect a plugged up radiator or perhaps it's cap is not holding pressure, check cap, and have it boiled out if cap is good. Also flush out block and head, remove block drain lower passenger's side of block below #5 park plug; you may have to bust through some slag with a screw driver or such...

Bill: At 0.006 lift lifter crank has moved 20 degrees, at 0.010” 30 degrees, and 0.030” 50 degrees. By shortening ramp or increasing rate of lift I have shortened the overlap event that has been causing low vacuum and torque at low rpm. I have moved the torque curve down the...

Personally I prefer to adjust lash when engine is running, however with big overlapping cam, and higher than factory idle, engine is moving too much, oil squirts all over inner fender, firewall, floor, and windshield; one PIA. Until I added more mufflers I could not hear valve to rocker...

? By any chance do you have a 2.6 Mitsubishi Jet engine with complicated reed exhaust recirculation? If so it has a pressurized crankcase, and pulsating air mixed with droplets of oil blowing out of oil fill opening in valve cover when running is normal. I have owned one from new in my 82...

This particular cam has very long ramps, at 0.006” the valve is open for 315 degrees, and closed for only about 20 degrees per degree wheel at zero lift. I had been advised multiple times by some of the slant racers over on /6dotorg to loosen lash, and never went past 0.018&#8221...

Compression test can be a tool to fine tune valve lash. Set lash to: Intake @ 0.010”and Exhaust @ 0.012” using previously described method hot and running. Drive the car for several hundred miles varying rpm as if you were braking in a new engine. Hopefully this will free up any...

http://www.accurateltd.com/63-74-A-Body-225-Slant6-Complete-Exhaust-System_p_193.html Can be had in larger than stock dia. as well.

Why couldn’t the PCV plumbing be “T’ed” into manifold under each carburetor which would make a balanced vacuum connection between both banks? See below 3/8” tap under carb on my Clifford 4V intake, probably a vacuum source for power brakes:

64Dart360: Thanks. My engine is far from stock, oversized valves, shaved peanut head for 9.5:1, ported, uppity cam, duel 2” exhaust to back bumper, 2600 stall converter, and 8 ¾” Suregrip with 3.55 gears out back. It runs 10.3 second 1/8 mile @ 68.3 mph in second gear. Engine doesn’t start...

I use a Bouchillon throttle and kick-down cable bracket, and a Holley Chrysler throttle arm adapter. Even with larger exhaust on stock engine a 390 may be on the big side, and your engine may not be able to fully utilize the secondary side of this carburetor. Best scenario would be to install...

Now available in a high performance profile with 2.25" pipes and muffler. http://www.accurateltd.com/63-74-A-Body-225-Slant6-Complete-Exhaust-System_p_193.html

That looks like fun. Not many in line sixes run here in central Maine let alone slant cars. The local track I go to every year or so for a few time trial runs during a car show is a 1/8 mile job. For you scoff laws out there braking the speed limit by three MPH I’m in the club, got the...

That cover is missing necessary baffle under PCV opening to prevent oil droplets being sucked up. It’s just eye candy, I wouldn’t bother with it.

You may have a sticking valve, or lifter, or bent valve stem, or something else… hard to know without being there to look, listen, and perform a few tests such as compression, vacuum readings. As to the explosion at #5, probably carburetor leaked raw gas into intake runner pudding at...

Would new engine mounts, plus a shim under driver’s side mount lift engine high enough to clear power steering? I had to do this on my ’67 to prevent contact of tube and gear’s adjusting bolt.