Your best, cheapest bet is to buy a set of used 4 screw SU carbs and rebuild them.

The 4 screw round top SU's are so easy to work on and they are a great addition to the 260z (I've had them on mine for over 10 years). You should be able to pick up a set on Ebay fairly cheap and rebuild them for less.

I am about to put a set of round tops on the classifieds here complete with the air cleaner manifolds and carbs for $150.00

I would think any four barrel set up would pool the fuel in the manifold. Not good.

That's all great advice. Now, if the poster would just acknowledge any of it......:mad: He aksed the question over three weeks ago.

That's all great advice. Now, if the poster would just acknowledge any of it......:mad: He aksed the question over three weeks ago.

Ditto...