Too much Compression?

[68Formula]

You want to take a built LS3 and add an LSA blower? You must really hate your trans.

Probably a stretch on pump gas, unless you have E85 available or add a Methanol Injection kit. And CA is only 91 Octane for premium, right? The cam may help a little since it reduces dynamic compression, but it'll still be pretty high for boosted. You'd need to make sure you have a large and efficient external intercooler, and conservative tune for sure. But then you'll need a better transmission too, like a 4L80E or T56 Magnum. Sounds pretty expensive when you add all that up.

I'd probably just compromise by putting the 3.73s in it and call it good.