You probably don't need alum heads to see the 400hp mark,Tom. A good valve job and maybe a little pocket porting/bowl work will have your oval port heads ready to go. Add an Edelbrock Performer RPM intake,750-800cfm Holley,hydraulic cam kit of around 235 degrees duration @ .050 with around .520-570 lift,good electronic ignition,and a free-flowing exhaust consisting of 1 7/8" headers and 2.5" mandrel bent tubing & a pair of quality mufflers should easily get you in the 400hp/450lb range.
Clint Hooper
H&H Custom,owner
1969 El Camino ProTourer
2001 H-D FLHR custom bagger
http://dalesplace.com/misc/friends/clint/clint_hooper.htm
----- Original Message -----

Hey Clint.
Budget?  I'm wondering if there are budgets involved with this obsession we all have..Just kidding, I wanna make it right so I probably have one just not sure what it is..I haven't had to do this since I had my 1977 Blazer 400 redone in the late 80's..I would like to get a healthier cam, maybe some aluminum heads, etc..What all would it take to get 400+ HP? I would say 2500 to 4000..could I get a nice motor with that or should I get ready to hike up my skirt??  thanks everyone for the input. 
Tom P

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