I forgot to mention I had all accessories-federal power steering pump, alternator, 8 blade water pump , 1 5/8 headers w/2 1/2 full length pipes, the Holley 750 dbl pump was set up 72/81 jets. Didn't bother spending more to know how it do as just a "dyno motor". 20 +hp left, but in the end.. only on paper.