I am looking to buy some new heads for my 95 gt w/5.0 @ 6-8 lb.. I don't want to spend mre than a $1000.00 so I have found a couple of options GT40x303 aluminum heads 1.95in/1.60ex or World winsor sr. cast iron heads 2.02in/1.60 ex they are both the same price. I have a 93 GT40 intake manifold ported that I will be using with them. Which head would you buy. they will be going on a stock 95 short block.