Big Block or Small Block?? Help!!!

[81ShrtBox]

I have had so many different engine combinations thrown at me its getting complicated.

1. 2002 Corvette Z06 powerplant(Dude didnt deliver on the package)
2. 2000 Yukon Vortec (388 sleeper I'm thinking about building myself)

or the lastest......

Guy I work with offered to sell me the 468 race engine from his racecar for cheap. He's stepping up to a 540 and offered my the entire engine for $3500

468 done by a shop in Arizona
T&G Intake
12.5 comp
2.25-1.88 valve(steel head)
1050 Dominator
Comp Cams Hydraulic Roller setup
around 700hp on 100 octane race fuel

i cant build the 388 I want to for that

Dont know if I'm willing to try and drive a 12.5:1 comp Big block on the Street though.. the race fuel isnt the problem. I dont mind spending a lil bit on fuel.. feedback on this would be great. Whats the most compression are you guys running on the street??