318 Poly A engine in a 67 Cuda

This one only makes 550 horsepower. But that was 8 years ago. Times have changed make more power.

[URL]https://www.motortrend.com/how-to/426-cube-318-poly-can-outgun-hemis/amp/[/URL]
I seen that article and several others. I think I can be in the 450 to 500 range and be very streetable. Then the Storm would take it over the top. I was going to build a stroked 340 but no matter what I do I'll be at or over the bottom end's limit. I have Milodon 4 bolt caps with splayed outside bolts that everyone says don't use because the block is thin there. Well the poly is NOT thin in that area and the caps are YUGE. Thinking replace the splayed bolts with studs. I also have a girdle but I'm not sure if it can be mated with the Milodon caps or not yet. So I have the option of using one or the other and maybe both! I can have a cam made, play a waiting game on a Windtunnel manifold, ad a flex fuel Killshot EFI and call it a day.