:hi:I have 99 GMC 3/4 ton 4x4 Suburban with built 7.4L on dyno 430HP & 530 torque this is with 750 Holley & 2" dyno headers Most of the guys here say it will go up a good with the Vortec...
Type: Posts; User: Bender Bob
Bender Bob's built 7.4L 99 Suburban
:hi:I have 99 GMC 3/4 ton 4x4 Suburban with built 7.4L on dyno 430HP & 530 torque this is with 750 Holley & 2" dyno headers Most of the guys here say it will go up a good with the Vortec...