Back at it Day 2

I feel I need to quantify something here......

But his opinion on the header swap on my combo was that is would make a significant impact.

Click to expand...

-“significant” is subjective, and
-I was thinking about what I’d expect to see on the dyno.

If the headers made 20-25 more hp, I’d consider that a pretty significant gain.
They “could” make more difference than that, but at 20-25hp difference, I’d still feel that was significant.

What would that 20-25hp do to the ET in the car?
In a combo at the performance level of Don’s car....... it’s .10-.15 in the 1/4.