If you are interested in dropping any J-Series into your car check out V6p.net. There are a couple of us who are pioneering for the J's.

I honestly think the K's are a better platform for a EF,EG,EK, DC, DA's. At least with a K you could run high 11's.

J's will never see that all motor. No matter if you put that in a damn go-kart or if the engine ran on wheels. Not without tuning which it lacks so much in that department.