[rocketw19]

Originally Posted by PARAGON

http://www.gmhightechperformance.com...ine_l92_heads/

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.