I have only had 2 experiences with a big block and the first one was a 440 in a 64 Belvedere wagon with headers and that was the most miserable experience I have ever had changing plugs, lol, second one was in my 65 Belvedere post with a 493" and after a couple seasons of my father racing it the crank broke and we just converted the car over to a healthy small block stroker.....for me I find the small blocks easier to work on and I like simple on my cars.
