Ultrasonic Cleaning

[jbcollier]

All the Federal TR6s had Strombergs with adjustable dashpots.  Non-Federal TR6s had fuel injection.  All TR7s with Strombergs have adjustable needles.  Non-Federal TR7s had SUs.

[TurboFource]

Link to DIY mod for adjustable needles: https://static1.squarespace.com/static/5c6dec53b10f25d4edf0b3f7/t/5d0191966981d30001198d1e/1560383895133/TR250_TR6+Carbs+-+Adjustable+Needles.pdf

needle bearings for throttle shaft (I did this): https://static1.squarespace.com/static/5c6dec53b10f25d4edf0b3f7/t/5d01954a3ad9b100013f52df/1560384844328/Stromberg+175CD+Easy+Spindle+Bearing+Upgrade.pdf

General page link: https://www.buckeyetriumphs.org/carburetors    Good info here

[TurboFource]

I have a set of carbs off another motor and they have adjustable needles too.

[Fotog]

Thanks, JB and Mr. Turbo.
As John has suggested, first I need to check everything else about my tuning (valve clearances and ignition timing) but I think I'm in need of adjustability.  Running very rich.
Lots of eau de hydrocarbons and frequent fouling, not to mention fuel milage about the same as a Chevy Suburban: 16 mpg.

Vince