Should I go Big block or Small block?

I have 2 stroked small blocks 8
1.72(340)with Xheads and a 360 steel crank stroked to 372c.i
2 360 block stroked to 408,Eddy heads P&P,10.5 to 1 comp.,.631 lift solid roller cam.410c.i should be pushing over 500-540hp.We,ll see at the track whether it,ll run in the 10,s?:read2: