Is that supposed to be the uncorrected data sheet followed by the corrected data?
Any idea what the atmospheric conditions were during the tests?
Does your data include the correction factors?
Looks to me like 2 different correction factors....... SAE vs STP.
Based of the fuel flow and bsfc........ the uncorrected peaks are 632tq@4500, 579hp@5400.
At peak HP, the correction for STP power would be 1.1135.
It “appears” as though the carb going rich def cost some top end power.
The bsfc number of .451 in itself really isn’t that bad....... but the a/f ratio in the 11’s, in that part of the power curve, is going to cost some power.
For the peak tq and peak hp to only end up 900rpm apart is a bit odd for a motor with decent heads/intake and a dual pattern 112lsa cam.
I had a 505 on the dyno a couple years ago........ stage 1 RPM’s and a 6bbl.
Peak tq @4300, peak hp @5800.
I def feel that with a more optimized fuel curve, the hp peak would have moved up a few hundred rpm.
