Odd engine combinations and how did they work.

Back in the early '90s, my brother bought a ratty '70 Challenger body and wanted to get it running as cheap as possible.
We got a old demo derby '69 Newport with a 383 2 barrel, and changed the cam to a well used street hemi grind one that we had laying around with mix and match lifters, used timing chain and gears, the intake and avs carb off of my '69 Super Bee, a noisy and badly worn set of 3:55s with a sure grip, junk headers and exhaust that were literally taken out of the scrap pile.
Total investment for the whole project was $400 for the body, the engine, transmission, and gears were free, the other parts were used and discarded (so free), he bought a new oil filter and oil, and reused or made new gaskets. All ignition parts were used and didn't look great. The car ran okay, but it did have a weak cylinder.
However, it ran 14.20s in the quarter mile at Spokane, and he installed a used 10'' converter for $25 and it ran 13.73 @ 102 mph.
I doubt that he had more than $500 in the whole car, and it ran good for 3 years like that until he sold it.