An update: I pulled the oil pan and found a piece of the plastic timing chain guide in there! I think the plastic was clogging the oil pump filter sieve and costing me oil pressure. This is a new motor and was supposed to have metal guides-- <img src="/forums/images/graemlins/angry.gif" alt="" /> The builder has agreed to send me a new tiiming chain with metal guides but now I have questions about the long term durability of the engine & I wonder if the rest of the motor is built as advertised, with upgraded performance parts to produce 134hp or if I just got a (expensive) stock motor. This is the same engine that shipped without galley plugs & without hooks to lift it into the truck. Very Frustrated. Any ideas on how I can be compensated for this-- or do I just chalk it up as a learning experience?