Thread: what to do for low 13's

^ + the required headwork to run that lift on the XP.

OR, Fullsize Intercooler, cam of your choice, built 3.69 tranny, stick tires, pully drop and tune.

Originally Posted by machinegunsquid

^ + the required headwork to run that lift on the XP.

Valve springs = head work?

I'd be more concerned with a high mileage timing chain with a factory dampner on an XP than "head work".