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I just baught a new set of fully assembled Z304A heads and was interested if anyone has ran them without any porting or a valve job done.

I am running a 030 over 302 with a 586 solid roller, Edelbrock AirGap, TKO 500, MSD igmition with an 650 Speed Demon.

The price was right, I couldn't pass them up.

I was hoping to install right out of the box.
Any inputs?

Thanks,
 

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On 2006-03-11 14:10, josepheblack wrote:
I just baught a new set of fully assembled Z304A heads and was interested if anyone has ran them without any porting or a valve job done.

I am running a 030 over 302 with a 586 solid roller, Edelbrock AirGap, TKO 500, MSD igmition with an 650 Speed Demon.

The price was right, I couldn't pass them up.

I was hoping to install right out of the box.
Any inputs?

Thanks,
Do you think the Air gap intake will choke those heads? I am not saying that I know but I wonder?? I think the air gap that I am running on mine is holding my CNC ported Trick Flow heads back. Maybe others will know and they will chime in.
 

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Use a Victor, I'm running mine with a gasket match, bowl blend and a comp valve job. Working great on my 349.
 

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There's no doubt the air gap intake will hinder the ports...however it might help with response and velocity some so your shift recoveries will probably be better than with a single plane intake.
I agree a good valve job, and chamber work will actually help speed up the air in the heads and also help out the torque/recovery issue.
I would use the air gap...you can always try a different intake later.
Brian
 
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