How much HP...again

Should add that in the text it was said:
- the 383 had 2.5" exh pipes[ 2.25" std ] & a dual pt dist. None of those are going to make a 1 sec difference with exh manifolds.
- implied in the text was that the 428 Ford [ also ran 14.04 ] had tyres that gripped with full throttle applied. None of the other cars had these tyres. Implied was that the other cars in the test had to ease out of the hole to avoid wheelspin. So the 383 might have made 13s with the Fords' tyres....
- the S/bee was about 120 lbs lighter....but also gave up 45 cu in to the 428. 3.3% v 11.7%.