Big smallblock power..Turbo?

Assuming this is a street driven car that you can drive further than 1 block -

Turbo or 4" stroker - either will reward the $$ input vs the frustrations and street un-friendlyness of making a smaller cube NA motor run the #s...

Here's a buddy if mine's 318 Twin Turbo 318 with EFI and a MP .520 lift cam.

Heads are smogger 360s with $500 worth of port work LOL!!

Made 630 FWHP on the dyno. Comp is 7.8:1. Best qtr MPH is 132 mph / 3500lb car (you do the math)

3.5 gears - 727 - Street driven car, he takes it to the shops and to work..

Biggest problem? Traction. He runs 295/15s and can't make a 1-2 change at more than 1/2 throttle on the street without the rear end getting squirrely..