Small Block 308 Heads, flow 270 cfm and Closed chambers
Ported 308 SB heads
Flowed 270 / 205
Deck cut .110 to closed chamber 56cc
2.055 / 1.6 11/32 stem Ferra valves
spring pockets cut .050
Manganese Bronze guides
Check out the build thread here
360 head porting for big power (500HP ?)
$500 located in Woodland CA 95695