Oh man, so much to dissect from this post.
1. Solid lifters with dual guides means you'll have to re-machine a set of guides each time you need to adjust valve lash. While that's not that often, it will be a PITA to do every time. You need to be more precise than when using hydraulic lifters, so I'm not sure how you plan to do this.
2. 8.5:1 compared to 9:1 is negligible.
3. Stock intake manifold is fine.
4. +1mm intake valves require extensive headwork to utilize properly, including opening up the valve throats and porting them to match the rest of the port. That's not what makes the car lope, the cams do that.
5. If you're really considering a somewhat "all-out" head build like this, why not make a spreadsheet of the costs and compare it to a VE head conversion, since you're taking the engine apart anyway. You can use stock cams and make more power than a "built" DET head.
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