For me it was a hard choice between an LS and SBC. I fell in love with the Inglese and they don't have a manifold for the LS yet. The engine dyno'd at 565hp. I probably lost 50hp-80hp by going with an SBC over an LS but I have a simpler system to maintain and also keep the build with a more traditional/historical appearance.
Take Care - Jerry Clements
PS - I dont know why the pics uploaded so small. If you click on each photo they enlarge.