Indy 360-1 Cylinder heads on small block LA's

PRH said
Exactly what I’d expect to see from installing larger heads.
Sometimes it can even come with TQ penalty in the lower rpm range.

Do you have weather data for both runs that could be used to correct them to standard sea level conditions?

Hi Dwayne, no unfortunately not. I´m pretty sure the weather now was not as good as back in fall of 2023 when it ran the previous best. It seems i had too big expectations, have to tune the new combination to reach full potential.