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I have a question about an article I read on 4WDMechicx.com when researching converting a CJ to TBI. The article can be found here: https://www.4wdmechanix.com/MSD-Atomic-EFI-for-Jeep-4.2L-Inline-Six?r=1 I have a 1980 CJ-7 with the 258 I6 engine. It was sold to me non-op and is missing some emissions parts that are hard to find and expensive. Going in my plan was to convert it to fuel injection to increase reliability, economy and make emissions testing easy. I found the above article that was very informative and well written. I dug into the details and have some questions. The article points to emissions testing in California a few times and I was hopeful that I could also put a MSD Atomic system on my Jeep. This was appealing to me because I put a MSD billet distributor, 6A spark control and a Blaster 2 coil on the Jeep. The Atomic system would work hand-in-hand with my ignition system and allow me to program advance curves. When I dug into the details I found that the Atomic system that was installed was part number 2900. Here is a direct link: https://www.holley.com/products/fuel_systems/fuel_injection/atomic_efi/atomic_efi_tbi/parts/2900. This appears to be an older system than the Atomic 2 offerings but is the only fuel injection system sold by MSD or Holley that is California legal. Scroll down to the Emissions heading and you'll see that is is legal under C.A.R.B. EO #D-722. I Googled EO D-722 and found this page:. http://ww2.arb.ca.gov/sites/default/files/classic/msprog/aftermkt/devices/eo/d-722.pdf. In reading the EO I see that the vehicles that this system is authorized for road use in California are GM vehicles made in 1987 and earlier with a V8 engine. California Executive Orders call out the specific vehicles the subject part can be used on. For example I have a MSD 8516 billet distributor on my Jeep. This is the EO for that part:. https://arb.parts/Executive-Order/D-40-39. If you scroll down to Exhibit A it lists 1993 and older AMC inline 6 cylinder engines under the 8516 part number. The point is the EO lists applications for each EO and if a vehicle is not called out in the EO the part is not legal for use on that vehicle. Getting back to the Atomic conversion in the article:. How were you able to pass a visual inspection when the Atomic system in not called out in the EO? In the past some smog shops would accept a CARB stickered conversion without checking the EO. I'm not sure that is the case now. If so putting this system on a Jeep is somewhat of a gamble. If a smog tech reads the EO the vehicle will fail. In that case the TBI will need to be replaced with a compliant part. The cost of the Atomic system is high - too high for me to risk a failing visual inspection. It seems to me that the only option for a fuel injected conversion on a CJ in California is Howell TBI. Please let me know if I'm missing something with the Atomic system and CARB legality. I've researched this for weeks and don't see how it can be legally used on the streets of California when installed on a Jeep with a AMC 258. Thank you, Bob Elliott
Thought I'd share a picture of my 65. I swapped in a 2003 4.8 ls based vortec. Also a th400/Dana 20 combo. Trans has a 2800 stall converter and a rv shift kit. It has the closed knuckle Dana 44 front and the 53 rear. I did all if the harness conversion wiring myself. It turned out good. Makes a nice farm truck.if I only had a farm.