[Keithc8]

We have done one set of the raised exhaust heads and that was on a high riser head. You can get more flow out of these heads on the exhaust. The Tunnel Port heads can be made to flow real good above 500 lift. You have decide if you are building for race or street when you decide on the heads. I have had some problems with the Dove heads in the past but they seem to be better now. It takes for ever to get them. we waited for over a year for the high riser heads we got from him.
Blue Thunder called today and have their new heads cast and have done the machine work to them and they are sent to heat treat right now. Their new raised port head should be neat. I am loking for flow numbers in the 400/300 CFM range on these heads. I think they are going to be the best HP head and will be available with a kidney new style chamber for more power yet. Thanks Keith Craft