1925 pound Dragster 540 BBC with 900 Hp with 410 gear. Last year was running a 331/2 161/2 16 with 106 roll out. This year I'm putting on a 34 15 16 with a 109 roll out. How much do you guys think the bigger roll out will hurt my Et 1/4 mile and my sixy foot Et? Thanks

Don't over tire the car. Friend of mine went from
104..5 to a 108.25 and lost 4 MPH in the 1320.
That was with a 4.30.

Ballpark

2 numbers in 60 feet and 4 to 6 up top with a loss of 2 to 3 MPH