<sigh>... if you stuff a SBF in a 427 style car everyone on the planet will be disappointed when they look in the engine compartment, including you. The nice thing about FEs is that they all look alike in a Cobra, including side oilers. Put a stroked and bored iron block 390 in there and you will be much happier. And any experienced FE builder can get you more horsepower out of that mill than you will ever need or use.
