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Jim Cimarolli · 05-20-2008, 08:24 PM

What if you have heads that have not been acid ported and stock lifters and you can still go to 8000 rpm?

05-20-2008, 08:24 PM	#6
Jim Cimarolli Senior Member Join Date: Mar 2002 Location: Sulphur Springs Texas Posts: 743 Likes: 146 Liked 166 Times in 46 Posts	Re: 396/375 Alum Vs Iron Heads.... What if you have heads that have not been acid ported and stock lifters and you can still go to 8000 rpm?