OMM: His eyes *are* open and he wants his 3310 to run... and it should when following the recommendations given. The rest of your post is nothing but rhetoric, which is not germaine to his issue.
Sheriff Buford T. Justice @ 1:37...
OMM: His eyes *are* open and he wants his 3310 to run... and it should when following the recommendations given. The rest of your post is nothing but rhetoric, which is not germaine to his issue.
Thanks. I will check tonightVS carbs are sensitive to how the base is tightened down. If the carb is not tightened down evenly, the base can twist a little causing binding. Use one hand to push back the throttle lever about 1/2 way and use the other hand to move the secondary lever up and down. It should move freely. If not, things are bound. Just a thought.
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 drive this car to work tomorrow run it hard a few times and see what happens.Thanks. I will check tonight
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 drive this car to work tomorrow run it hard a few times and see what happens.
TQ's are excellent carbs. Unfortunately, many of us don't have spreadbore intakes nor the ability to get the old strip kits.This is why I like Thermoquads-you can always hear them opening.
TQ's are excellent carbs. Unfortunately, many of us don't have spreadbore intakes nor the ability to get the old strip kits.
Ok. That's should work fine. What revision 3310 - ?I have a holley 3310 750 on a mopar 380 horse crate motor.
Is it all the way against the housing?With the carb installed I have used the paper clip on the diaphragm rod trick to check the secondaries.
H'm.I have run the car full throttle through all the gears and also just left it in drive and gradually accelerated to full throttle but the secondaries never open.
Not too big. I ran a 3310-3 on my 67 notch with 340 comp-280 cam, manifolds, and 3.23 gearing. about 3000 stallCould it be the carb is too big for the application? 67 barracuda with auto, 10 inch converter, dougs headers. 3:55 rear.
Its possible something is holding the velocity back. If its not pulling hard enough on the primaries, it won't open the secondaries. For example primary jetting too rich or timing curve way off.Does anyone have any ideas on why the secondaries won't open?
Vacuum secondaries eh. Is there a choke lockout for the secondaries. This would prevent the secondaries opening while the choke is on, even partly. Don't know much about Holley's but Rochester has this feature.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 the vacuum housing and the white spring installed. I have made sure the vacuum housing has no leaks and bench tested the secondaries by blowing air with a blow gun through the front right venturi. With the carb installed I have used the paper clip on the diaphragm rod trick to check the secondaries. I have run the car full throttle through all the gears and also just left it in drive and gradually accelerated to full throttle but the secondaries never open. Does anyone have any ideas on why the secondaries won't open? Could it be the carb is too big for the application? 67 barracuda with auto, 10 inch converter, dougs headers. 3:55 rear.
Vacuum secondaries eh. Is there a choke lockout for the secondaries. This would prevent the secondaries opening while the choke is on, even partly. Don't know much about Holley's but Rochester has this feature.
I have both a 750DP and a 750VS.I'm going to drive this car to work tomorrow run it hard a few times and see what happens.
did you check to see if the small o-ring style housing gasket is in place?Thanks. I will check tonight