Gents--
I recently took delivery of my new motor from Southern Automotive, a 347 cube motor with solid lifters, single plane intake, 780 cfm holley and twisted wedge heads among other things. I was hoping for 400-410 horses at the rear wheels.
After tweaking the jets, pushing the timing and dialing the motor in, (about 3 hours of dyno time and worth every minute) I was showing 339 horses at the rear wheels and 325pounds of torque. The technician advised me that the above equated, with my gears and driveline3 settup, to approximately 422 horses at the flywheel. Allowing for some reasonable tolerance, I feel that I have gotten a very strong small block for my money and I am extremely pleased with Southern Automotive. The time on the Dyno yielded about 30 horses over the as-delivered power, but this is understandable as initial tuning and settup was "seat of the pants" and I am known as a numb a$$. My first small block only achieved 224 horses at the rear wheels, so this is a great improvement.
We all talk about these big-horse numbers, but its really interresting to see what happens when the rubber meets the rollers
Rick
