I'm not sure where you got the 58cc thing. IIRC all heads have the 63cc chambers, which realistically can be anywhere from 62-65...lol. I see a lot of guys stuck on Hughes. They get overpaid for what they do, Edelbrocks w/stage 3, plus matched springs, retainers, and locks cost $3K. And the Iron Rams simply will not support that kind of power yet Hughes is pushing them. IMO this is because the markup on them is MUCH more than Edelbrocks. LA RPMs max out at about 290cfm on most benches. If you indeed need that much power, a better set of heads would be the Indy-Brocks that use offset intake rockers. In any event, you set the chamber size. You dont buy and figure "why would they lie".
