Compression ratio

Thanks everybody for the input. The pistons are not stock, but when he purchased them he insisted on forged pistons. Said they were stronger than stock. I know they bored it .030 over, and decked the block and also bore aligned it. I don't know the numbers on the deck or the bore alignment. I thought he was doing a good job. As for the stock manifolds, I already ran into that problem. I have a header flange to fit that side. I had contacted Edelbrock about this issue, but they couldn't offer a solution other than recommending headers. I already have the HP manifolds, and prefer to use them. This is being mated to an 833, and 8.75 rear diff with 3.91's and anti-spin.
How does that sound to you experts?