Edelbrock is the best deal out there but if it won't clear your bore size that doesn't help you. Every set of Stage V's I've bought, the ports weren't finished. I had to take them somewhere and have them completed. (That's expensive.) The best way out for you is when you take the heads off, notch the bores with a Sunnen cone. It sounds hard in the car with the pistons in but it can be done. Edelbrocks are such a good deal it just doesn't make sense to run anything else right now. If you need help I'll guide you thru it.