I have run iron heads that looked nearly stock and flowed more than my current Indy 426-1 heads....It takes a bit to beat those old numbers with factory heads from that era, but now a days, a small block phord head will just about flow what the newer hemi heads will. Just scary.
Currently, mine flow right about 395cfm and it comes on real quick...just not exactly where I wanted to be, a little disapointing, but I am not paying huge $$$ to have someone else work on them for now.
Last edited by Dragula; 07/17/10 10:12 AM.