Looks like you should have read the 13 page post on the A855 over on FABO if you could stoop so low. I wish you well and hope you got a GOOD one! But do read the post over on FABO.
Why did you replace the TQ with the Edelbrock? The TQ's are ten times the carburetor that the Edelbrocks are! Also, in your picture above, it looks like a Holley. Which carb do you have?
Keep in mind, that R134a is being phased out as of right now. R12 is still legal to use. There is always some around somewhere-swap meets, garage sales, house auctions. So many people have been brainwashed into thinking that R134a is their only alternative. It is not! Find and use R12, you...
Of course, the A833 is the Chrysler trans, bullet proof and not to much to improve on. But I hear that he even screws them up. The bad dealings are with the A855 5 speed. There are quite a few people that have nothing but good things to say about them. I'm glad you got a good one. Again, go...
Is your Challenger Petty Blue? I always wondered what happened to it. I'm from Adams, and used to drive through Panama once in awhile. Send me a PM if you would like.
For any Jamie Passon friends out there-go to FABO and read the 13 page post about the purchase and dealings with Passon. Go to the manual trans section and a little way down on the first page. It is titled A855-5 Speed by matthon on Aug. 26, 2019. After you read that let us know what you...
Stay away from the Passon 5 speed! Go over to FABO and read the lengthy post how he has treated his customers. I've heard his overdrive gearset for the 833 is no better. A few people have had good luck so far with them, but the rest not!
The brackets are all different, needing at least a different crank pulley and belts are all different, the water pump pulley might be different also. Good Luck!