kuwait_to

Hello Z&ZX people, guys any one can advice me to chouse the suitable su carb. cos i found 3 diff. type of SU carb.Now im using that carb which is came in 260 Z it has anumber HMB46W and it is new and the car run ok but the engin consuming to much gas.it has no control to adjust gas amount but i can reduce or increase the air via bypass valve to rich/lean firing. when i checked scrap(place in kuwait that import used engins from japan) i found 2 diff carb. the saler talk too much about them, he said they are the best even they are very old.they are smaller than what im using now and they fit in 240 Z and datsun SSS but i cannot trust saler (afghani guy). they both have gas control valve located at the bottom. the 240Z carbs is round at the top with 4 polts to fix into air intake, the other one is flat top with only 2 polts to fix into air intake.The saler ask around 150$ for each carb set . As the afghani saler i need to clean them and fix to engine and only play by the 2 gas control in the bottom to catch the best gas amount. cos of no body use theis carb here in kuwait even the nissan dealer dont know anything about them i thankfully for any word from you. Thanx for Gary- Thanks you guys Saad- kuwait 280Z- SU carb.

hello all, when i read a mong your articles i found the expresion top end power and compresion ratio i.e (9.5 : 1) what is that , and how can i calcuated or measure it. thanx Saad - s30 - 1978