so,

this is sort of an extention to my previous question. I just got this 71 240 Z and I'm just learning how to deal with it. The previous owner took all the emisions control out, so the intake manifold has a rail that's just cut and pinched off. I don't really know how good of a set up this is and think maybe I should just invest in a new intake since I'll be getting new carbs any way. Any opnions on this?

-parker Mann

For one thing if you have round top SUs you have all the carberation that the your L - engine can handel . Now you can spend a bunch of cash on a set of triples and look like a racer but the truth is a stock 240 and or 280 with SUs, properly tuned , have all the fuel they need. Now if you install a after market performance cam , do some valve work and up the compression and install a electronic ignition and headers and 21/2 " exhaust , then you might find different carbs to be of some benifit. There is a Z driver in Seattle that is running in the 12s in the quarter mile , runnin SUs . my 2c I am sorry if I came off preachy , I dont mean to it's been a vary rough day.