Just out of curiosity, why are you trying to get a 2nd gen camaro to pass emissions?

 

I drop the spring weight down 2 sizes. It had the stock spring. I went with the blue spring and passed with flying colors. I had 0.00 for CO2 readings.

I am a Holley guy, but this carb came on the truck, it runs great. It is just a daily work truck so no reason to mess with what isn't broken.

 

I want plates. 74 and newer have to pass emissions in Colorado and most states. This carb is on my 81 C10. But I have to get my 78 Z to pass later this month. That will be fun. Will probably have to take the 750 off and go with something a lot smaller.

 

Swap the Z to ethanol and it will fly through! Does Co. have "special use plates"? I changed my Austin and the Camaro to special use plates this year. The Austin got antique plates, and the Camaro I put the original '71 plates on. In Oregon cars with special use plates are exempt from DEQ, and it's only $82 for one plate for the life of the car. Here, anything over 25 yrs. old can have a special use plate.

 

No special use plates here. Has to be older then 74. I am thinking about ethanol.

 

holleys are for guys that love to constantly tinker with things that wont stay fixed!! edelbrock carbs are set it and forget it

 

Total baloney! The Holley on my '71 has been there for years and haven't touched it since I installed it. Old Holleys had a rep for that, but new Holleys come with instructions saying they are factory tuned and flow tested, and for street use don't need adjustment.
If you're drag racing a Holley will get a lot of tuning, but so will any carb used for racing. Racers just like to constantly try to fiddle with their engines to get more power.
At least a Holley can be tuned easily if needed, unlike an Edelbroke.

 

I would have to disagree with you on this one! I have had multiple edelbrocks that wont even adjust the idle circuits anymore and spit fuel n fire back through the breather. And no it wasn't a timing issue either! dropped a holley on the maro and its 10x better already.

 

Well I have a Proform so there.

But really with removable air bleeds and emulsion bleeds, I guarantee once I have it dead on. It will stay there. I can see the circuits and how they work in my mind with Holley carbs. This makes it easier for me to visualize what I need to do to fix something. I can't with an Eddy.

With a wideband A/F gauge that has a digital display along with my timing light I could tune it, but i would have to spend some time on their website reading.