...Finally arrived! These are my 2nd set of 911R Magnesium Intake Manifolds that my buddy Bob Barnes sold me. I'll use this set to complete my 2.5 liter racing engine. Thanks again Bob!
These 911R intake manifolds were actually port-matched to these 911ST factory twin-plug racing heads http://www.pbase.com/9146gt/my_9146_gt_project_my_engines_engine25ltr_911st_twinplug_heads which I also purchased from Bob Barnes - It would be interesting to see how these parts will work on the flowbench and dyno (Bob is mailing me the "dyno-chart" from his racing engine while it had these parts).