Where to start - SBO 350 rebuild??

[MrSony]

Don't have to CC the pistons if youre going .030, but it's cool to know what you have and map your exact compression.

 

[olds307 and 403]

Sounds like your looking for a nice street car with a little punch. I would mimic the W-31 for a nice driver and have 325 HP

Actually Olds under rated it. I believe it made 360 HP gross on the dyno. To make the horsepower you need similar duration but modern cams out perform the factory W cams.