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I checked for any type of interference with gasket or linkage and all is good. Held throttle half way open and blew air into passenger side venturi and secondaries open. The 380 horse crate motor does have a lumpy cam but that should not change venturi vacuum. I'm currently baffled. I'm going to...

Thanks. I will check tonight

I will check linkages tonight also. I will try blowing air through right primay venturi with throttle open and see if secondaries open with carb on car. I did this on bench and all was good but did not try with carb installed.

I will check for gasket interference tonight. The 750 vac secondary is what mopar suggests for the crate motor. I had a 750 double pumper on engine last several years but when i tried starting car after winter storage it ran like crap. Took carb apart and fuel bowls and metering block are full...

I have made sure the vacuum passage is clear. I have bench tested the secondaries by blowing air past the vacuum hole on the right primary venturi while holding linkage open and the secondaries open. For some reaon they don't open when the carb is on the engine and in use.

I have a holley 3310 750 on a mopar 380 horse crate motor. The secondaries will not open. I have the quick change spring kit on the carb. I have changed the diaphragm, tried it with and without the check ball, tried all springs in the holley spring assortment. I currently have no check ball in...

Thanks

Looking for a fresh or fairly fresh set of big block heads. I'm putting together a fairly stock 440. Not particular on which castings. Just looking for something ready to bolt on.

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Finally got some dry weather so I could drive the car and check the secondaries. The secondaries were definitely not opening. I had a new vacuum diaphragm so I installed it with a yellow spring, secondaries still didn't open. I have a 750 double pumper i'm going to throw on tomorrow and take...

this is a good comparison- I'm going to check out the secondaries on my carb to start with.

It is the roller cam version

Is that the dynamic converters by Frank Lupo? if I remember correctly there are 2 different dynamic companies.

I an not sure but have been wondering about that. This engine has less than a thousand miles on it so to be that down on power there has to be something going on. I just put the lightest advance springs in the distributor so I will have 35 degrees total all in by 2000 rpm next thing of concern...

I checked those numbers before I went to the track and was obviously disappointed when I got my 1st time slip. I have heard 3:91 gears work best with the 380 horse crate engines so I wasn't expecting a 12 second pass but thought for sure it would run in the lower 13 range. I'm not sure lower...

Not sure of weight. no scales at track I was at. should weigh close to what a stock 67 barracuda weighed but I've checked for stock weights online and seen variations from 2700 to 3400 pounds. I would think 3400 would be more accurate.

best mph in 1/4 was 95.34 best 1/8 was 78.34

I got out of racing 8 years ago and sold most of my racing stuff. went to the track a few weeks ago just to watch and got the urge to race again. I figured my 67 barracuda notchback street car would be a good choice to race in the street class and keep things affordable. The car has full...

I'm looking for a stock small block oil filter adapter plate and hollow stud. I need the 4 hole adapter plate. I have one which is a 6 hole from a magnum engine but it does not fit tight to the block. Thanks

thanks to all for the advice.

The member I'm trying to locate is dart540. He has been a member since 2009. He posted an ad for a rebuilt 727 transmission on this site for $600 with free shipping. I saw his location was SW PA which I figured was close to me. After several PM's back and forth he asked me to call him which I...

Is it within the rules to post a thread asking for help locating a member? there is a member that used the classifieds here to steal money from me. After giving this member negative feed back another member contacted me and said he has the same problem with this individual. I only have a 1st...

Looking for a nice black front driver side arm rest for my 67 barracuda. PM me if you have one with price. shipping would be to 16137. thanks.

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I need a driver side exhaust manifold for a 383 non HP. casting number 2532626. these came on 66 - 69 B bodies - possibly others. PM me here with price and shipping cost. I'm in Mercer, PA 16137 will buy pair to get driver side if necessary

sale pending

This is a converter I got with a drag car i purchased in 2005. I was told it was new and it appeared to be new. The previous owner did not know the make or stall since he received it when he bought the car and could not remember what he was told. The inside of the converter was perfectly dry...

I have a set of 3:21 gears just removed from a 8 1/4 rear. These gears ran quiet with no issues. I just had a sure grip unit installed and switched to 3:55 gears is the only reason for removing these. The ring gear is still mounted on the open differential but I can remove it if someone just...

I have for sale a sure grip unit unit for 8 1/4 rear. This unit will only work with 2:45 or numerically lower gears. This is a new unit that came with one of my cars. I tried installing it with a set of 3:55 gears and found it would not work. I learned that 2 different sure grip units are made-...

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