Building a 410 stroker and need some advice

Brewil,
11:1 is pushing it with iron heads and if you are going down the porting road go with some Eddys and have Shaddy Dell do the work. As far as the rest please consider comp cams XE285HL (adv 285/297) and with a set of 1.6/1 rockers will give you .581 lift. You need good breathing to take advantage of the stroker set up. Just my .02
Andrew