I have a 75z with a 3.0 piston kit and a bigger cam. I cant get it tuned, it floods during cold starts. I've seen a few post about after market EFI's but I don't know what to look for. Where do I go to get one? what do I get? Thanks ~Rosco~

Moved to the FI forum.

Also deleted the other thread. Please don't create multiple threads for a single question.

This thread on the Hybridz site is a good start for researching - http://forums.hybridz.org/index.php/forum/63-ems/

Consider converting it to twin SU carbs. Easier to maintain and tune.

Don't know that a pair of 46 mm SUs have enough flow for a 3.0.

I have a lot of time and money in it to keep it as stock looking as possible. I thought injectors would be more reliable but thats not the case with the stock electronics

I have a lot of time and money in it to keep it as stock looking as possible. I thought injectors would be more reliable but thats not the case with the stock electronics

What do you mean by this?

I wanted it stock excpt for the HP

I thought I would put this built injected motor in and go. I didn't want to change the electronics. I've seen some butchered cars that were converted to carbs and I wasn't impressed.

thanks zed

Could your cold start injector be leaking? How old are the injectors? Have you checked for vacuum leaks?

I just ordered the SDS EM4-6D setup for my '75 280Z. It can be used with stock fuel injectors & eliminates the bulky airflow meter. Can't wait to install it and begin fooling around with it. It's the most affrdable & versatile system out there for old Datsuns and let's face it, we don't have many aftermarket sources for these systems when it comes to regular street driven cars.