Originally Posted by triniemi
I stayed alive. Could Curtis or any other give me head recommendation for my 509? Looking for most bang for the buck, but also more power. I think aluminum heads alone are going to cut .1 out of my ET if they flow as much as the ported original Merlins. I think they are now with about 320cc intake runner.
Maybe, maybe not. Aluminum heads dissipate heat at a much faster rate. Unless you up the compression, you may not make any more power, and in fact, could make less.