The daytona does not need bigger carbs than 26mm for use at anything less than 7000 rpm.
The inlet ports and valves are big on that motor anyway, look elsewhere for performance improvements.
Bigger carbs will spoil the motor for street use. A good exhaust setup and higher compression with
worked pistons will be a better 'bang for your buck'. I had one that was a 100 mph bike and standard,
what more are you looking for? They were one of the best motors triumph produced in many people's