I'm new to this but after 20+ years of wishing I finally got my dream car. I think the 326 will run, but found a complete 400 out of a 76' mid size with a y7 code and 6x heads for a good price. I'm just wondering if I would be better off finding some HO heads and do a couple upgrades to try to get that 326 close to 300hp or build the 76' 400, or wait for a firebird 400 to come available? Thanks for any help, Aric