JW, you should get lot's of info. here about Shell Valley (Big following here). I just want to give you a "Atta-boy" for restoring your wife's old Mustang. Smart guy here
. Nice to have the whole family on board. Good luck on both projects, we're here for you, I too would at least think about a high-revving SBF. Granted I have a BBF, but my next one will be a SBF, sitting next to my BB. We just installed a 347 in a friends FFR, it will now spin the tires at 4000RPM in 4th gear (TKO-500) at 70MPH. with 295-50-15. Enough HP for now
Cheers Tom.