About two years ago I was in a similar position you are right now. I read, searched this and that and even then I did not see even a 10% of what I should have known to make the right decision. My answer to your question is very simple. Buy from Ed above and my choice would be the "Streetsweeper" package. It is all you need and all you ever dreamed about. I will try to explain why now that I know a little bit more than I did about 2 years ago.
Back then I did receive an e-mail from Ed much like his post above. I read it and did not know enough to be able to see the full significance.
Let's, for the moment, forget about the grind itself and look deeper into the other components of his package. Let´s start from the the last step in the proposed swap, pushrods. Just recently I have come to know and understand the importance of good quality pushrods. There are many pushrods designs. For example take a look at the Manton pushrods website,
http://www.mantonpushrods.com/ There you will find a good description of the significance, importance and proper function of pushrods. Ed's pushrods are not the everyday run of the mill kind. For one, they are tapered pushrods. Why is this important? Because they distribute the forces much better and prevent pushrod binding with the rockers cups, if you are using, and you should use, roller rockers. Pushrod lenght is important as well to protect the whole valvetrain, lifters and the cam itself.
Retainers, locks and seals. His are top quality. Why would this be of any concern? Because these parts absorb much of the stress upon function, especially the valve seals which may and do experience lateral forces as the pushrods move those valves up and down. These parts fatigue with time and could fail. The quality of these parts should not be overlooked.
Springs vary in their brittleness as a function of temperature. Springs do take punishment from the hight lift cams and it is obvious you do not want any failure coming from this component of your valvetrain. Ed provides you with worry free springs.
Last let's talk about the grind. Independent of duration and lift absolute values the design of the lobes ramps is important in both determining performance and response. The grind itself will obviously determine the performance and it is closely related to both the engine tyoe and cylinder head configuration. Ed knows exactly what you need for your particular set up. There is no way me or most anyone else in this forum can match Ed's experience and deep knowledge on the subject. After all he is our resident heads and cam guru. The particular grind is something to talk over with him.
Above all the choice of a cam is not soemthing one should address with an out of the shelf product. The whole package has to be conceived with thorough and comprehensive understanding as applied to your particular set up.
Finally, yes, two years ago I did not buy from Ed and went for an out of the shelf cam in a situation where I felt most comfortable relative to my understanding. Nevertheless, my understanding was limited and wrong, very distant of what it should be. At present with a little more experience and knowledge I did turn to Ed for my present cam.
That aside, installation by someone who really knows his stuff is very important. No package, however brilliantly conceived, is going to work properly and safe without an educated install. It takes special tools, special precedures and detailed measurements and torque specifications. First step is to measure the cam baseline circle of your new and old cams. Last step is to determine the proper pushrod length. Don't forget that.
If you are going to replace lifters. Just one word: Morels.
Yella Terra are fine. Talk to Ed for other choices.
For pump and timing chain: SLP timing chain and oil pump package. Do not use the optional spring.
Fuel injectors OEM should be fine, but in any case you will see that while doing the custom tune you will need.
Catch can, a must. Get a good one that will not fall apart inside. I use the AMW catch can.
I take the time to write the above in the interest that you do not make the same mistakes I did two years ago.
Good luck with your project.
2006 GTO Owner
Other Holden/HSV
