Look at this article, scroll to the bottom and find the last picture shown. It is a 500 Hp budget recipe. 390 block stroked to 445 cid. Although, I would not go with solid roller lifters. Make sure the block supports hydraulic lifters and go with hydraulic rollers. The whole article is a good read.
https://www.diyford.com/ford-fe-engi...plete-history/
PS
I think a better head and less aggressive cam would make a better engine. Talk with builders on this site.
PPS
If you already have a 428 block, the same stroker crank would get you in the 460 -470 cid range (too lazy to calculate it). It would also allow an internal balanced engine. If you do not have a 428 block, 390 blocks are much more common and less expensive.