I was just wondering what years of the rx-7 have carborated. i wa wondering this because i want to know if they are harder to mod or what not so just throw the years or models up here and ill be happy. thanks

 

if its a second gen, which is the section you're in, it's EFI stock. 79-85 (except 84,85 GSL-SE) were carb'd. all 86+ have been fuel injected.

 

For the "which is easier to modify" part of your question:

Stock Mazda EFI isn't very modifiable. You can change to larger sized fuel injectors, you can install a fuel-cut defencer, and maybe some tricks I don't know. But it's pretty much a closed door for those who want to put a lot more air & fuel into the motor than Mazda intended.
Aftermarket EFI, with a stand-alone fully programmable computer running your motor according to your lap-top-issued commands, is almost infinitely modifiable. But with that power comes steep prices, lengthy time investments, and learning new skills.

Stock 1st generation RX-7 carburetors are fairly modifiable. Check out www.Yawpower.com for enough carb info to make your head explode.
Aftermarket carbs such as Webers are more modifiable, but have their drawbacks in all-weather driveablity and cornering.

Do some searches in this section, the 1st gen section, and the whole dang Internet, and you will learn much.

 

you can go to mazdadragracing.com and go to their intake page, they have some IDA and Weber style Fuel injected TBs

Justin