Its not the size of the engine... well, actually it is...

Hey thats right, you have a '79, what do you think of engine?

I remember reading in a road test from '81 that an '81 Sedan deVille is good for a 18.6 in the 1/4 mile and I think it's 0-60 was like 10.8 or so I think. I'm probably a bit off though.

I can see that, the V8-6-4 is like an iron HT4100 as far as power goes. yet I really wish I could drive a 368, just to see what it feels like, I've driven almost everything else that came in this bodystyle

425 ('79) well, soon...
HT4100 ('83)
350 ('90)
305 ('91)

now all I need is 307 and 368 with and w/ out V8-6-4

The 368 was a lot like the 425, it pulled real well, from a dead stop, and was pretty quiet in my Eldo, I always wished that car had a 4 speed trans with OD it would have been so much better

I drove a '81 Brougham Coupe once, it reminded me of that '90 Brougham D'Elegance 307 I drove....slow.