340/drivetrain build advice

http://www.aamidwest.com/enginequest/eq-cylinder-heads/chrysler-magnum-head/

I'm not sure of the price, but if you're buying iron heads, you might want to check these out. There are links to a recent Popular Hotrodding Magazine article and the stroker 360-based engine made 580hp...even though you're not building a 417" stroker, probably worth considering.
Also, recommend the book on rebuilding the 727 rebuilding book by Munroe http://www.bing.com/images/search?q...BC7F824C616982E6AEEE8D03C4E0F600C&FORM=IQFRBA

this link to the book. Built my first 727 using this book/Munroe's recommendations and added a TF-2 kit as previously recommended and it's holding up find behind a 600hp 493" RB-based engine. The TF-2 fixes the 2-3 shift overlap and has great shifting manners.
Good luck, let us know how it turns out.
:burnout: