Apparently you can replace your intake and heads with these new heads and not only gain torque and HP but get a huge amount of flow.
Pretty cheap too. You can get setup for less than $1500.
heads are GM part # 12582713
all I found
I got the info from a local engine builder
all I found
I got the info from a local engine builder
holly **** thoes heads are only $1000 and for $500 bucks more you get a 90mmTB and fuel rails. this pricing along with humdingahs flow numbers. this is a great choice. i never knew GM motors were so cheep to modify. i have been spending all my cash on my AMG E55 were a 80mm TB is $4000 bucks by its self.
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