I am in the process of obtaining new heads. Just wondering if the increase in performance for aluminum heads justifies the cost difference. The BBC engine I am building will be targeted for 550-600 hp range. If the block checks out ok I will end up with a 468 ci engine. So far I have checked out the edelbrock and dart heads. It appears that the dart iron eagle and pro 1 heads have almost the same flow numbers. Is this correct? Just looking for everyones .02 worth on this subject.
Barry