Here is the THING
W-2 heads are easy to find and afford--It is ALL of the other items that you need like the valves--The ROCKER Gear! The Headers, The intakes etc that are going to wipe you out and then when you run it ya go --Ummm..Should have went with something else for sure--They were designed to go faster than the racers were going at that time using a tunnel ram, 4 speed, and a Pot Load of RPM--so in that time doing that job they were better but now?????? No way!
Trick Flow SB's coming soon no reason to think they will not change the landscape like the Big Block units have done--You price quality W-2 rockers get it all bolted in then observe the stupid push rod angle on the intakes and you will see for yourself