Oh come on! It's a Corvette! Get the best.

I'd get either AFR, ETP, Trickflow, or Edelbrock. Does that narrow it down at all.

 

I do not believe the AFR's come with an equivelant spring then. That would require an upgrade on their heads. Granted I am not sure that would be needed with that cam but you may want to check into it.

 

Pretty much every 1.290 diameter dual spring out there is the same part number Associated/Pioneer spring. Some shops say they're good to .600" lift and others say .650" lift. Guess it depends on who you buy them from. So, if comapny "A" says you can use them for this cam, and company "B" doesn't, it must be their own personal experience.

 

Well with out having the springs to compare and never having heard that before, I am not sure I would buy that. What I do see is that AFR recommends you UPGRADE from the 8017's (which their heads come standard with) to the 8019's if you plan on running over .600 lift or over 6600 rpms.

 

With all the bolt-ons you have and your desire to keep your ride very streetable, I vote AFR 205s all the way. I can't begin to say enough about the crisp throttle response they give over stock heads. Increased fuel economy too. Most ported heads give up crisp throttle response vs. stock. Not the AFR 205s. I speak directly from personal experience having run 6 different ported heads in my various LS1 F-bodies. Nothing has even come close.

I find it funny that many people are voting for a head they have no personal experience with...
I can say with conviction that if you want better than stock throttle response, better than stock fuel economy, 40-50 rwhp gain, and strong resale value if you ever decide to go on to a different project, go with the AFR 205s.

 

As I stated, they use the same spring. Some get them coated or nickel plated but it's the same spring. Some play it safe while others tend to push the limits of the particular spring.

The part number is Pioneer 053658x quantity.

It's not an industry secret.

 

You make a very convincing argument. If I went with AFR205 with standard sized combustion chambers, would it be possible to have work done later to increase the combustion chambers to 76cc for FI, or would I have to buy new heads? Or, could I go ahead and run 76cc chambers N/A and see close to the same power increases?

 

I'd go with Air Flow Research.

 

You could do it, but it would be very involved and very expensive. You'd basically have to open up the combustion chamber and sink the valves to gain the extra chamber room. Both take a lot of labor if you plan on keeping the dual quench pad and high flow valve seat arrangement intact. A better plan would be to sell the AFR 205s (strong resale value) and get the AFR 225s in the 72cc chamber size or keep the 205s and buy a dished forged piston. With forced induction, a stronger piston is always a good idea.