Time to replace Su carbs

[Miles]

I think it is time to replace the Sus on my stock 72 240Z. Engine idle is very ragged and the engine surges at low speed. The problem has been getting worse over the last month or so. No amount of mixture adjustment improves the problem. I can turn the mixture knob all of the way to max lean and the engine rpm doesn't change and there is no off throttle backfire. The engine bay and exhaust smell like raw gas. I am going to spring for the $600.00 and buy a pair SUs from Ztherapy. Hope this cures the problem.

 

Miles

[spotfitz]

Sure you wouldn't want to get a ceramic coated intake, fuel rail and the polished Ztherapy SU's(w/ stock needles and SM's)W/ K&N's dual air filters for $500(shipped) rather then pay $600 for just the carbs?

I'm selling my setup because I am going turbo. I have almost everything I need for the conversion, just have to wait until my Z gets back from paint jail.

Here is a pic of the setup:

http://www.geocities.com/spotfitz/Z-engine3.jpg

You may have to copy and paste.

I bought these from Evan purple(ZCAR.COM name) about 3 years ago. The only problem I had with them was I had a back fire do to cam being one tooth off and it popped the throttle shaft seal off. I couldn't find it. I received another from ZTherapy after just a phone call. They covered the seal and shipping, even though I didn't buy the SU's from them.

Let me know if this is something your interested in.