nocones Posted June 1, 2009 Share Posted June 1, 2009 I have a 73 240z with the wonderful flat top carbs and have a set of 3 screw round tops that I want to swap in. The car is pretty much all original. I have been searching everywhere (probably with the wrong keywords) and can't find anything that shows how to do it step by step. My main concern is which lines can I delete because they are not needed. There is a lot of plumbing in there related to emissions and carb water cooling that I want to get rid of. Anybody have any advice of where I can go to help walk me through this? Quote Link to comment Share on other sites More sharing options...
zedsn Posted June 2, 2009 Share Posted June 2, 2009 Hi, I have a 260z with hitachi flat top carbs and I put on round top SU carbs and kept the 260z intake. I had to modify the linkage but your swap will be pretty easy I think. I got rid of all my emission stuff as well as the water that runs through the intake as well as the idle compensator with no ill effects. I can send you some photos if you like. I no longer have the carbon canister or egr hooked up and swaped out an early non egr top piece to bypass it altogether. I ran an exhaust manifold that had the heat yubes removed and ends plugged. Quote Link to comment Share on other sites More sharing options...
Phlebmaster Posted June 3, 2009 Share Posted June 3, 2009 Hi, I have a 260z with hitachi flat top carbs and I put on round top SU carbs and kept the 260z intake. I had to modify the linkage but your swap will be pretty easy I think. I got rid of all my emission stuff as well as the water that runs through the intake as well as the idle compensator with no ill effects. I can send you some photos if you like. I no longer have the carbon canister or egr hooked up and swaped out an early non egr top piece to bypass it altogether. I ran an exhaust manifold that had the heat yubes removed and ends plugged. Hi, I would like to see pictures of your swap. Thanks. Quote Link to comment Share on other sites More sharing options...
zedsn Posted June 4, 2009 Share Posted June 4, 2009 Hi Aaron, email me at zedsn@hotmail.com and I will take some photos for you. Ed from Ohio. Quote Link to comment Share on other sites More sharing options...
Phlebmaster Posted June 4, 2009 Share Posted June 4, 2009 Thanks Ed...email sent. Quote Link to comment Share on other sites More sharing options...
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