340 High Compression Pistons

My machinist recommended the high compression with an aggressive cam profile to achieve the 450hp were looking for without using a stroker kit. I know it makes more sense to stroke it and use different heads but I want to keep the stockish head outward appearance. We're aiming for more of an old school type build. Looking at the mopar muscle 340 build I don't think 450hp is out of line with the right combination