Re: car engine swap question
You will def. need somewhere to dyno the thing.
I agree with you on the headers vs exhaust manifold. Basically, exhaust manifold is stock, all the exhaust from each cylinder is combined right away, headers, carry it seperaty to allow higher and easier airflow. On their own, headers are pretty much a waste, but with some forced induction and a high flow muffler, they will help a lot.
Dont worry too much about the computer part, thats easy to solve. idk what works with dodge cars, but I know for my ranger, I would be getting something like an X-Calibrator 3. Can hold 3 custom tunes, will recalibrate the speedo if you get bigger tires, removes top speed limiter chip if there is one, allows the rev limiter up a bit, and you can tune your engine. This will also be a part of the dyno.
“Adults are just obsolete children and the hell with them.” - Dr. Suess