I resently bought a set of Winsor Sr. heads from a guy that ran a 250 shot of nitrous on them and burnt them up. I had them rebuilt with a competition valve job, new valves, guides, and seats. I also have an Edelbrock performer 5.0 EFI intake that will be going on also. I alredy have a full engine rebuild with a E303 camshaft, flat top pistons, and bored .040 over. I also have 1.6 roller rockers and am planning on an 70mm throttle body and egr spacer along with a cold air. However I have a sluggish AOD and stock 2.73 gears. The gears will come before some others. Any ideas on the horsepower ill be pushing? But mainly I want to know if im waisting my time with the heads. Any opinions are welcome and apprecaited.