I spent a lot of time comparing heads flow numbers at
Shady Dell Speed Shop
I swung all this on a very budget minded approach. So dont get me on a high dollar shelf.
I jumped on a pair of iron w2 heads when I stumbled on them and never regret it.
I ported them myself and the torque made my throat go out my butt.
Next I looked at w9s but didnt want to get into custom everything. I would love a pair but I cant justify the cost yet.
I would not use an edelbrock aluminum head as they are a step backwards from your current j heads. My thoughts are by the time you work the edelbrock to perform you could of easily went with a uncut w2 head.
Yes everyone says the w2s are expensive because of the one off stuff. But you will likely get new rockers for your edelbrock heads and maybe buy new headers anyways.
I never went down the road of any other cast iron head.
I stumbled on a pair of aluminum indy 360-1 heads a year ago. I had them ported. Had to get the bigger tti headers because the exhaust ports were huge. I have yet to get to a track to test but it sure as hell flies.
I honestly would not play with anything else and jump into w2 heads. The cost up front sucks but if you could swing it you will be a few seasons ahead of the competition.
