SU HIF (Integrated Float) Carburetor Tuning is performed by John Twist. He explains the process while he actually works on some HIF 4 carburetors on an MGB. These would be the stock carbs on a 1972-1974 US Spec MGB. UK Spec Cars retained the HIF 4 from 1972 to the end of production in 1980.
If you have not previously viewed John’s overview video, that may be useful. To review that first, where he walks through the process use this link to that item in the knowledge base.
Now you will be ready to do your own SU HIF Carburetor Tuning.
John Twist of University Motors Ltd. is a great resource and supporter of the MG community. His website has a great deal of information available for free. Also, John has created hundreds of videos shared on the University Motors channel on YouTube. some of which are embedded here. Given all the contributions John makes, please consider using the donate button on his website home page if this information has helped you. Also you can use the button provided here.
John Twist Donations via PayPal
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