their is a guy on ls1tech with a ls7 based engine swapped into an 80 monte carlo , he has about 10k in just the heads and is making 620 ish at the wheels.
your gonna need to make a lot of rpm , light valvetrain , big cam . Everything is going to have to be specced out together from the start .
sheet metal intake and many one off parts. It would be much cheaper for you to procharge it or add nitrous.
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