Hi,i just read the above mentioned wiki,whereas the person who built those engines,said they used parts they had laying around,including a bored and stroked 426 hemi that turned out to be a 500 cu in engine...WOW,thats about as far from stock as you could get. and i still dont believe they got 800 ponies. i had a 426 hemi in a 1969 charger, helluva engine,but as ive said before,NOWHERE near 800 ponies. i had 2-- 4 brls and a wild cam (i think it was the purple one) not too sure on the cam,as its only been 38 years. the TV program saying they got 800 hp,is about as believable,as me saying i got 150 hp out of my STOCK 12 hp Kohler engine in my 1966 king midget.