I recently came into possession of a 1981 Vette that has the CCC installed, as does every other ‘81 and I was wondering exactly what parts I need in order to delete that since I’d rather not deal with any sort of ecm, I know I need a standard 350SBC distributor and carburetor. Am I missing anything? Is there anything else I should know? I’m kinda new to the whole carbureted car scene.

 

it also activates the converter lock up on your th350c, you can run without lockup or install an alternative switch... running without will raise your RPMs a bit in drive

 

Eliminating the pollution controls is against Federal Law. Here in Virginia they expect to see a catalytic converter where one was installed from the factory. A delete pipe will get you a failed inspection. Every year we need a safety inspection and my inspectors look for the catalytic shell. To get around the system I simply broke and removed all the material from inside my catalytic and left the empty shell on the car. This makes the inspectors job even harder and I was set until the inspector brought out a infrared thermometer, the catalytic converters make a lot of heat when working properly and this can be detected by a smart inspector. They did notice that my catalytic was the same temperature as the rest of the exhaust system, caught.....

Those ECM's are what makes the car able to run more efficiently. Removing ECM's can be a challenge and the car might not run as well. On the C4 you can't even remove the EGR without needing a New Code fix for your ECM.

 

Or, delete the carb entirely, and convert to Sniper EFI. You'll just need a 4-pin HEI distributor. I'd look at the Progression Distributor as the best solution for that.
https://progressionignition.com/

The best way to get around the torque convert lockup issue is with a clutch pedal.

 

He lives in North Dakota. 25 years and older are exempt from emissions laws.

 

He's new to this, I don't think sending him down the sniper black hole would be good.

 

I put a Progression Ignition HEI distributor on my 82 and it was so simple I was amazed. I did have to rotate the distributor gear 180° to get the top of the distributor to be square with the rest of the car when the crank was set to 10° BTC and the mark on the distributor lined up with the rotor, otherwise it would hit my air filter.

JT

 

He's new to carbs. Wasting time on carbs is an investment that will not pay off in the future.

 

I understand that we are dealing with 50 year old cars and I did notice where he lives. Removing some emissions components can really degrade performance. I have a C4 as well and it has a new modern style catalytic and on the interstate's the C4 can break into the 30 mpg range. With everything running and operating as designed the car is great to drive and enjoy.

Yanking off anything "Emissions" related is really uncool anymore (in my humble opinion of course), that was popular to do in the 1970's. On my C3 there (was) an air pump but other than that there was a PCV and that is the extent of my emissions system on the 427. My C4 is another story, every part of the emission system has been kept running. I do not have state emission inspections anymore but if I did my car would pass with no problems. The emissions equipment is built into the code used by the ECM to operate the car. Simply disabling the EGR will cause the engine to run Higher combustion chamber temperatures and in turn start pinging more on the highways unless you use premium fuel.

I have a Holley Stealth Sniper and it has been anything but a "Black Hole". The system is very easy to understand and if you need support then you should buy it from someone who provides after the sale support. I bought mine from EFISystemPro.com and they sold me a complete system for less than $1800. They put together a list of everything you will need for installation and then sold it to you at the same time. The best part is they have a Holley Tech (Tier 3,EFI) who will help you get the system going. They give you 2 years of support AFTER the sale and they eat, breath and live Holley EFI. I have not had to use any of the help because I simply followed the instructions that Holley provided. The website for efisystempro's also has a TON of information to help solve any questions.

 

What did you use for a fuel pump?

JT

 

You have got bigger problems than that in Virginia.
Look to see the EPA do away with alot of those regulations... Minnesota's in the process of banning collector cars all together.