So I have lead on that problem pushrod help?
If you really want to do heads, you can certainly port stock heads for use with either the 350 or a stroker.
H/C 350s put down 380-420 without much trouble. How much power you make
really depends on how much you want to spend and how much cam you are willing to tolerate.
http://elliottsportworks.com/ <-- this guy can help you out

He certainly helped me with both my 350 and my 383.
Some of the guys have had good luck with http://www.advancedinduction.com/ as well
a) send him your stock heads
b) buy a set of used Lt1 heads for $175-$200, OR
c) buy a set of aftermarket castings for $1100+ (Dart, TFS or otherwise)
I have done my own heads on a few projects, I've also had other people do them for me.
It's not terribly difficult if you have basic tools, jackstands and some free time.
Here's the documentation from my H/C install a few years ago
http://www.cardomain.com/ride/229715...irehawk/page-4
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Watch for the coolant x-over tube bolted to back of the heads. Make sure you don't damage that or strip the bolt head when removing the heads.
I've never pulled the heads with the motor in the car, so I don't know of any guides, but it's just nuts and bolts. I would have a professional re-install and adjuster rocker arms, etc.
Use this as a guide http://shbox.com/ci/cam_removal.html
and this to put it back http://shbox.com/ci/cam_install.html
You can do all of this with the motor in in the car.


