if I'm reading you right really isn't all that terrible. What it does have is a broad torque curve and hits 500 lbs./ft at almost 5,000 rpm, should be good for something.
Without sugar coating it......
That combo only making 500hp STP would be a bit of a let down to me.
But, my confidence in the dyno numbers isn’t that high.
Or, if they’re accurate, then I feel like the tune up was(hopefully) pretty far off.
Without a do-over....... it’s just a big question mark.
I’m saying, that in my mind, I would expect the sum of that combo of parts to add up to more than 500/500.
And that if that’s all they are really worth....... then no, that’s not a real effective combo.
Should easily be able to make 500/500 from a 416 with noticeably less cam and flow.
This one is a 410, cleaned up RPM heads(270-ish), 251/259 cam, Victor, qft-850, 1-5/8>1-3/4x 3 headers.
I didn’t run this one, and it also suffers from quite poor bsfc numbers....... and I think there could have been 15-20hp left on the table with that carb, as it was.
As it is, it’s just shy of 2hp/cfm.