Vacuum Secondary Conversion

273 said

I think I’d take a few steps before I jumped right into how much cr I could get away with.

With my if I ever upgrade the short block on my 380hp 5.9l crate I wouldn’t shoot for the stars, I start with a cr that’s generally known to work for the combo, and still might shave off a few decimals just in case.

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That sounds like a good plan!
Do you think you would keep the factory heads, or upgrade at the time?
I tend to like AJ's build posts because he can run the numbers methodically and can tell what works with the current engine building goal posts. I wanted to find out if those goal post have been moved, and if so, how we can put numbers to it to quantify.