Got my car running finally after 2 years. The car runs great, it will be a while till I have it on the dyno to give you some real world numbers. But after driving it yesterday and the day before Im highly impressed. Keep in mind my car is far from stock. I have 1990 GT, Carb set up with a Holly 750 DP, F303 cam, Scorpion rockers, Victor Jr intake, * Patriot Heads* , serpentine drive with only alternator, BBK long tubes, Full MSD ignition and a 4.10 gear out back. This car even just of idle seems to have a ass ton more power. I have still yet to tune it and put it on the dyno. I've heard talk that these heads flow identical to Edelbrock Performer heads. The exhaust ports on the heads were bigger than my BBK long tubes, I think the heads are more than worth the money. I'll get some actual dyno numbers soon.