360 Mods

The "Supercharger Store" can set you up well.

The Edelbrock heads are the cheapest aluminum head and the best bang for the buck. Though the MoPar "W" series is out standing for ultimate power. After that there is Brodix heads which are also very good but a little pricey next to the Edelbrocks and IIRC, not as pricey as the MoPar head(s).