Changes are coming for the Road Runner.

Hurt the crank/rods/bores last year, so I will be replacing the rotating assembly.

Current setup is 0.030 over 440, OOTB Eddy Heads, 0.557 Solid cam, M1 Intake/950 Holley. Drive train is a 727 with trans brake, 8" Turbo Action convertor, Ford 9 inch with 4.11 gears.

3600 pounds with me in the seat.. Runs 11.00 on 275 Drag Radials, 10.80 on slicks.

I am planning to bore it a little more, and 4.150 stroke to crowd 500 cubes.

So, I am expecting more power and torque.

Still debating a gear change (3.89), but my question is how is the small torque convertor going to work with the horsepower and torque changes? What will happen to the stall speed?

Any insights will be appreciated.

Thank you, John