On the Mach motor (4.6 DOHC). You won't gain anything from the head work. They already breathe better than any natural induction than you can bolt on... The MAF and TB won't help much either. You can probably gain 10-15 with the exhaust. Save your money toward a good S/C, and then you'll gain some serious power.
On the Mach motor (4.6 DOHC). You won't gain anything from the head work. They already breathe better than any natural induction than you can bolt on... The MAF and TB won't help much either. You can probably gain 10-15 with the exhaust. Save your money toward a good S/C, and then you'll gain some serious power.
Factory stock Mach 1's are running high 11's at over 115 mph with the stock heads, intake, TB, MAF, etc. and the shaker blocked off. Just full exhaust, gears, tires, suspension, weight reduction and good drivers.