I have a 74 260Z that has dual Weber carbs on it and I'm looking for a jet kit(s). I searched the garage it was resting in for the last 26 years for the original Hitachi carbs to no avail. Now I've gotten a little attached to the Webers and want to tune them so it runs a little cleaner. Thanks in advance for parts or links, Chip.

 

I have weber electrical cut off jets for dual webers.

 

Hey Cyclops, you would be better off getting a pair of *Z therapy* round top SU carbs. Take it from an experienced z car technician that the problem with the dual weber carbs is the intake manifold and they will not function correctly. This is just a known fact buy many datsun techs. Good luck with getting them to run correctly. PS: i can get a hold of some good SU carbs here in California if needed.

 

I've got a pair of SU carbs from a Spitfire of indeterminate age, I bought a running car for the front clip to go on a GT6 I was restoring. Drove the car home and pulled the carburetors. How do I determine what size they are? Just by the throttle blade diameter?