HIF38 Rebuilt 1.5" SU Carb | Classic Mini | Sprite & Midget | Morris Minor

I am looking for a leaner needle for my 91 Mini 998, It's a single HS4. It's dead stock down to the air filter. In my area we run from 4500' to above 8000'. Currently, the car is running rich so id like to lean it out. If possible, please suggest a range of needles that I could try.

I am after su blow through turbo carburetor, can you supply?

‘74 Mini 1000 (stock) with SU HS4 - having issues with cold engine hard starts. Timing is confirmed and engine was good when warm, but takes a long time to start and warm up. Almost seems like it has no fuel - wondering if there is an internal leak somehow that drains the fuel bowl... New mechanical fuel pump and new fuel tank. Car has 49k original miles. Wondering if a carb rebuild is in order or an HIF38 replacement might be a better answer? Can I use the stock manifold and air cleaner with an HIF38? Maybe an electric fuel pump as well? Thanks

Hello I’m wanting to fit a reconditioned or new Hif38 Carb to my 1960 948 Morris minor . It’s standard apart from having a recently reconditioned 12G295 head . I’ll be fitting extractors and a Maniflow 1.5 2 muffler exhaust system. I already have a Maniflow water heated manifold to be used for the Hif38 . Would I need a different throttle cable for the Hif38 or would my existing minor one fit . What else would I need in the way of linkage or brackets? . I’d need the spacer between manifold and carb. With this info could you determine the appropriate needle to be fitted . I need to increase airflow to get the most out of the cooper 12g295 head . Perhaps I could purchase other needles to try once I get the carb . Kindest regards