Searching the threads about intake manifold choices, am a bit confused. I see the new low rise "Tiger" manifold for about $550 on ebay. Can I assume this is the Blue Thunder manufactured manifold? There seems to be one listed as low rise, and another as high rise by Blue Thunder. Tried to open pictures, but could not. There is a thread discussing manifold choices, but could not open those pictures. Does the low rise Tiger one work well? Saw good recommendations for the high rise, and available through Bill Martin, for a higher flowing engine. Seem to remember the original Tiger manifold was not felt to be much better than the cast iron Ford one. Thanks, David