Looking at getting a set of TA Performance Stage 2 SE Heads. Given that I need oval port headers I wanted to see what the options were. For reference; it is for a 1970 Buick Electra 225 Custom 4 door with a 455
http://taperformance.com/products.asp?cat=388 Looks like some fit the 71-76 Electra. Not sure about the 70. Maybe call TA.