I purchased a 1976 Datsun 280z in mid summer that had been sitting for 3 years. I flushed out all the old gas, flushed out the radiator, bought a new battery, put new gas, put injectors from my previous running 1978 280z [RIP :tapemouth] and she finally had fired up. So i try taking her for a spin and she starts choking on me. I look at all the tubing and notice some are a little old so I have them replaced. I fired her up and still would choke. After about a week I have it towed to Mike's Z Shop in Whittier, Ca. They work on it for 2 weeks and get it to run better but it STILL chokes. They put new spark plugs and a different airflow meter. I just got home from Whittier with it going no more than 50 on the freeway because of the choking PLEASE HELP thank you in advance

Choke?

It wont accelerate because the car feels like its "choking" so i have to accelerate in steps cuz it will choke so its gas gas choke gas gas choke is that clearer? I dont know how else to explain it hope i was clearer

I hate to ask, but have you or Mike's measured the fuel pressure? Sounds like you're a little low, maybe a clogged inlet screen, clogged filter, or bad pump. If you have good pressure, then you'll know to look somewhere else, like timing or vacuum leaks.

And it sounds like they might have swapped in a used AFM? You didn't say "new." Coughing at part throttle is what my bad AFM was doing. But it went pretty well at open throttle. Idle - good, part throttle - stumbling and bucking, open throttle - goes fast.

I would check fuel pressure first, check timing and make sure it advances properly, and look for vacuum leaks.

I've been talking quite a bit out here on classiczcar. Hope no one minds. I don't want to monopolize the conversation.

I suggest you look at Blue's tech tips website. It is linked in my signature. Among other things you'll find is the fuel injection bible.

Steve