Should I get new carbs on my /6 2.2l 911e motor? Options

[tornik550]

I recently purchased a 911e 2.2l engine. Befor I install it in my 914, should I change carbs? A previous owner at some point changed from MFI to zenith 40 tin carbs. From my understanding, this is probably not the best setup for a 911e 2.2? I have looked at the different options, which do you think is most appropriate taking cost, hp/torque gains, drivability...

1. Leave the zenith carbs
Pros- I already have them
Cons- probably better forming options

2. Change back to MFI
I probably can't do this one. I have no where to obtain the setup and I really am more comfortable with carbs

3. Change to weber 40 Ida's
Pros- ? Power?
Cons- expensive. Most likely between $2000-$2500 after rebuild

4. PMO carbs
Pros- improved overall performance compared with the zeniths. Easy setup. Is it worth the cost?
Cons- very expensive-$3600.

Here are some other things that I am doing to the engine other than basic maintenance. Pertronix for the distributor, new plug wires (clewett), msd 6al (I already had this), msds headers.

I do not plan on racing this car anymore, just spirited street driving.

[ClayPerrine]

If you were closer, I would help you with the MFI. The system is old, cantankerous, and frankly not easy to work on. I used to fix cars for a living, and I had to pay Ed Mayo to teach me how to work on MFI. It was worth the investment. Properly setup, MFI will give you better performance than carburetors of any kind.

But there is NOTHING that can match it for throttle response, and the SOUND is just pure audio porn. I have MFI with K&N watershields on the stacks, not so it can breathe easier, but because it sounds better. If you have ever seen the movie LeMans, you have heard the 917's MFI scream at full song down the Mullsane straight. I can get the same sound out of my car at full throttle.


Now if you already have the Zeniths, get them working so you can drive your car and enjoy it while you determine what you want to do.


If you want to get Electronic Fuel Injection that you can turn the key and drive, swap the motor for a 3.2 Carrera motor, complete with the injection. It will bolt into a 914-6, and with a little wiring you get a car that starts and runs like a new car.

Remember, everyone here has an opinion. But it is your car, and you have to be able to enjoy it. So listen to everyone and pick what YOU like.