422 dyno fail

About 18 years ago I reconditioned and bowl ported a set of J heads(240cfm) that went on a basic street/strip 416.
250/259-106 SFT cam, RPM A/G, HP750, 1-3/4 x 3 headers.
Made just over 500ft/lbs, and just under 500hp(like 498).


Just curious. What did it run and at what weight.