If you want to compare what this engine did against other engines, we can do that...
Even if a dyno corrects 87%, it's still valid to compare against other builds on the same dyno. The reason for the uncorrected numbers was so that the engine could be compared against other engines from other builders, on different dynos. Most everyone will have access to the uncorrected figures.
So this engine made 538hp @ 6000 here, with 515 lb-ft @ 5000. With the Dominator, it made 540 hp @ 6250 and carried it to 6500, with 515 lb-ft available @ 4750.
Other engines in my records that have similar horsepower to this one:
1. 445FE, Survival Motorsports heads, as cast, 235/241 @ .050", .613/.575, Performer RPM, 10:1, 525 hp @ 5500.
2. 433FE, ported C5AE-F heads, Sidewinder intake, 235/241 @ .050", .600/.600, 10.5:1, 526 hp @ 6000.
3. 438W, AFR 220cc heads, RPM Air Gap intake, 240/246 @ .050", .586/.590, 10.3:1, 535 hp @ 5700.
4. 408C, Edelbrock 351C heads, Performer RPM Air Gap intake, 240/244 @ .050", .622/.628, 10.5:1, 522 hp @ 6100.
5. 347 Clevor, CHI 185cc 3V heads, CHI 3V intake, 223/227 @ .050", .628/.635, 10.5:1, 517 hp @ 6250.
6. 347SBF, AFR 185cc heads, Victor Jr. intake, 230/236 @ .050", .600/.600, 11.25:1, 538 hp @ 6500.
I think the 390 did pretty stinkin well.
[quote Brent
Totally agreed !! the 390 holds up well against the others listed !! Brent what is the Torque comparison between the 347 AFR185 and this 390 ?? curious if the 347 holds up against the 390 on the torque for similar power