View Full Version : Looking for Holley carb tuning tutorial
I am struggling with getting my new 750 Ultra DP carb tuned, have you seen a tutorial or primer on carb tuning, hopefully specific to the Ultra or 4150 series of 4 barrels?
SCFFR
06-30-2013, 05:20 AM
Did your carb include the Holley dvd? It has quite a bit of information on installation, maintenance and tuning. Should have been one in the box with the carb.
Ron
Mustang Man
06-30-2013, 05:26 PM
What is the carb installed on? No amount of tuning is going to help a 750 Double Pumper if it is sitting on top of a stock or mild 302. That's way too much carburetion...
Mark
Boz1911
07-01-2013, 04:14 AM
Basically the floats need to be level and the mixture screws out about a turn and a half to start. You can then adjust the mixture screws in or out to achieve peak idle. That being said there is a possibility it's too much carb or you could have ignition or timing problems.
Ringo
07-01-2013, 01:08 PM
Holley has some really good videos to help you. http://holleytv.com/?cat=13
mike w
07-02-2013, 10:51 AM
I found this helpful.
http://books.google.com/books?id=oVZrJgUAlRYC&pg=PA50&lpg=PA50&dq=holley+vent+baffle&source=bl&ots=JnVHxIrgjX&sig=0GODmgI12tpt1-UJgPJYMHMCzwc&hl=en&ei=J1n2TbDhJpH0tgPe0bjOCw&sa=X&oi=book_result&ct=result&resnum=6&ved=0CD8Q6AEwBQ#v=onepage&q=holley%20vent%20baffle&f=false