slant 6 to big block

Hey everybody, just got a 68 dart 270 slant six for a good price because I want to make my own street beast. I want to make great power on pump gas (92) octane, and I would like to do a big block. Anybody out there got any suggestions for what I could do to this car? (Kinda wanted to do a 440) As far as which big block would be good for fitting and stuff? Any info would be very much appreciated. Thank you
Your question is really not about our opinions, but about what YOU want to do. If you want to go with a 440, then start searching the forum posts about that swap and start learning.