streetable
If you want to be "streetable", it might benefit you to just pull out that 13 to 1 sbc and replace it with a tamer version of a sbc. I personally think a BBC is the way to go, a pump gas 496 can make great power, and with steel heads can be a little more reasonable/affordable. Altho they have some decent alum. heads at reasonable $$ for street BBC's. Certainly your call. Good Luck
Jeff M.