[cobrabritt83]

i have a 427 side oiler that i need to get a set of heads for. my question is are the old heads like the c5ae-f with the 2.19 intake and 1.73 exhaust better then a set of new edelbrock aluminum heads with 2.09 it. 1.60 ex. i see some of the old (f) heads on ebay still go for a lot of money and it seems like there pretty collectible. i know the new heads are a lot lighter then the old ones but are the differences in valve sizes that important.