should be able to do it with a mild cam like a performer or RV cam. these engines made over 300ft-lbs from the factory and really respond well to mods. just about any cam grinder can recommend a cam that will work well with whatever mods you want to make to the motor and for your intended use. I have an Engle cam in my 304 and it makes great torque from idle to 4500rpm. http://englecams.com/catalog/search_results.php
try them out. :t:
