Hi guys great to be a part of your forum Mark asked me to join. Hopefully I will be able to help with some of your questions, I am the Poly Tech Director for Chrysler Power Magazine and do all the Poly engine articles for the magazine. I also handle the aluminum big and small block Street Fighter series of heads. I do cylinder head porting and engine building. So if you are looking for advice on your engine build contact me I will be glad to assist you. Either email me or call me at 724-290-2497 my email is Tothperformance@zoominternet.net