Update

I did rebuild the carbs with the correct kit but the engine still would not run. Compression felt low so I ordered a new ring and gasket set (both back ordered for 2 months).

Compression better with the new ring and was able to start the engine after a good prime. Baseline the L needle out 1.5 turns and the H needle 1 3/4 turns. Getting 8k on top and richen to get 7900. Transition good with sharp drop in rpm's with it going to idle. Idle was ok at 2500 rpm's and attempts to close the trim resulted in inconsistent idle then it died. Difficult to start so I richened the L needle by 1/4. started a little better with good transition going to full throttle but it died going back to idle. Leaned the L needle by 1/8 then it would start then die like it was lean again.

It looks like the carb is not consistently drawing fuel. I'm about ready to pitch the Tillotson carbs and replace with genuine Walbro ones. What is the Walbro replacement for the HU134A Tillotson carb??

Pete