[BLk_HAWK_GSR]

i want to know what the best idea for me.running a fully built gsR block w/a SC61 turbo i want to run high boost.i want to hit the 600whp mark . my friend told me about the dart head he said it will run 320 cfms. or i can use my stock Gsr head and port & poilsh it and save me some $$$. but the deal is that i never seen a stock gsr head w/ the port & poilsh head run more than 300 cfms.do u think the Dart head is a waste of money? or is it a good investment for the long run? :confused ThAnKs

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[CRVTEC0WNZJ00]

I personally think its a waste of money, if you have your head PnP'd by a guy who knows what he's doing and then tested properly on a flow bench you'll have a good enough head with the right cams already selected etc.