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For your consideration is a Holley carb conversion package with everything you need to run. Includes 240Z SU type intake manifold, 4 barrel conversion manifold, 1 Holley 390 cfrm in good condition with fresh rebuild, 1 spare Holley 390 carb of unknown condition (may need rebuild), linkage arm, and chrome air cleaner with filter. The 4 barrel conversion manifold is an odd beast for sure. Looks like it was made for a blow through turbo. It really drops the carb down low and has connections on the bottom for some kind of cooling (or heating?) system. Really interesting piece. I took this off a ITS race car we are currently restoring. Going back to SU's. I tried to take lots of pictures. Asking $500 for entire setup and free shipping in continental US.

Okay, I just boughat my first Z earlier today. My father owned the same 79 280zx model back when I was a kid and Damn it was awesome. I want to rebuild what he had and restore this one to its full potential but I just can't catch a glimpse of that happening. I've been battling with it since I got it home (I drove it 40 some miles with no more than some minor bumping in the front left tin rod and high revs in neutral and between shifts). I go to inspect my prize and I see chaos. The tube behind the mass air flow module (or what I believe to be) had been wrapped several times with electrical tape. Turns out it had a massive tear. Then I got it going again to test the high revs and it started going up and down between 2 and 3k rpms like it was galloping. Soon after it stalled. I was told it had a leaky exhaust manifold seal but this was not something I know to become of that. I started it back up and it launched the alternator belt clean off. I put it back on after turning the car off and it hasn't stayet running since. I tried puting it on both pulleys coming from the block but neither seems to make a difference. It'll run for five or six minutes and die a slow startling jumpy death. What all am I dealing with here!?!? Have I just thrown 2 grand away??

Your probably all gonna kill me over this:p But I pulled the SU's off my 240z, and put on this Skyline P90 intake on it (I ported the hell outta the intake to match the carb). The carb is a 2 barrel carter I pulled off a dodge 273 and rebuilt. It seems to be running considerably better than my SU's, but with maybe a very slight bit less power. However the SU's could've used a good rebuild, and I'm still tinkering with this setup. Ive still got the choke to hook up and it needs filters and a better fix for a couple of the vacuum lines then Im gonna give it a cold air intake.

I currently own a 1978 280z. I recently replaced the fuel pump, fuel filter, and cleaned out all the lines and gas tank due to it running extremely lean reaching 4k RPM's. Now as i try to push the car harder into the 5k RPM range it starts to lose power and the RPM's drop then kick up then drop again. This has also been happening in any RPM range when ever i floor it. My thought is the new fuel pump is sending too much fuel(or not enough) and there isn't enough air getting into the engine because it has a stock air-box which i cleaned out in hopes of fixing something but I had no luck. Ill post a video of the problem as soon as possible. Thanks.

1971 240 with SU's/header -- Coolant Water mist sprays out between my intake manifold and head -- Weird. A bit of acceleration and it becomes a little geyser. It is betwwen the number 4 exhaust and intake runners and has actually made a hole in my manifold gasket. Could it be a leak inside the intake manifold? There is a water passage there. Please help!!! Thanks!!!