ET Estimates please

I'd guess 150 -200 hp difference.

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Okay........ so we’ll use the Moroso chart to gauge the HP difference to see how close it comes to that.

On the Moroso chart your speed shows a fair amount better HP than the ET.
At 3450lbs the ET shows 463hp, and the 124mph speed shows 506hp.

At the same track, my car went 11.40@115 and change, at 3670lbs, weighed on their scale that day.
My car shows the same HP for both speed and ET..... 432hp.

So, based on ET...... you’re showing 32hp more than my 383....... and based on speed you’re showing 74hp more.

My “rule of thumb” for a street/strip car that’s set up at least “close” to being correct is........ it should be able to run within 10% of the STP dyno numbers, according to the Moroso chart.
This would be for tracks that don’t have altitude corrections.

My 383 dynoed at 485hp, so on that day, at that track, I was right at about 90%.
Based on 600hp STP, you were at 77% for ET, and 84% for speed.

At another track, on a better day....... that exact same combo in my car went 11.26@119, which shows 93% for ET and 98% on speed.

I have several customers who have run very close to 100% according to the Moroso chart........ but there are also many that are well outside “the 90% rule”.

My friends Stocker is well over 100% in any kind of 1/2 way decent air.