Yesterday I took my car a 351W with Edelbrock EFI. to get Dyno'ed. The last guy that did it really missed is up, only spent about 3 hrs on it and only ran 4 pulls. They got 262rwhp and 340 torque. This time I took it to Westech in Mira Loma in So Cal. They did a great job, spent all day, did about 12 or more pulls. When I bought the engine the bench dyno gave 458hp and 479 torque. Westech pulled out 367rwhp and 405 torque. These guys are great. They really know what they are doing. Their number is 951-685-4767.