TR100,
For this question to be accurately answered, we'd need to know a lot more information from you and about your car...
Goals? Motor Combo? Trans? Weight? Power Adder? Etc... Example - My car is a 90% track 10% street car - with goals of running in the 6.50 class. Motor is a 306cid w/flat top pistons. Trans is a C4 with a 4800 stall. 3000 pounds heavy +/-. Carb/Nitrous car. So the set of heads for my car would not necessarily be the same recommendation as a car that is a 347ci EFI, Bolt-ons, 5 Speed, blah blah blah....
If you've got a small cubes motor - I've got a set of heads that you can get fairly inexpensively. They would need to be taken to a machine shop to have made perfect for your combo (header, and rocker arm fitment issues) - but they're fully assembled aluminum heads and BRAND NEW for $650. They're for sale in the F/S forum here.
And if that's not the route you're looking to go - you are best off to look at
The Corral or
www.hardcore50.com for some serious sets of heads that are F/S.
Good luck either way.