Rad help with 67 dart .

I had a friend cut and widen my tanks and converted my stock 67 copper and brass to a 4 core high efficiency. Pretty sure 22”. Still copper and brass of course. I had him do one for my dakota also. Both cost me about 500$, and I haven’t run the one for the Barracuda yet. But I told him I wanted the best cooling rad he could build me within the stock confines.