Just wondering what the process of "milling the head" means?
How does it relate to engine performance? What are the specs for N/A and FI setups (How much "milling is required")?
And also for Port and Polishing......what are the specs for N/A and FI? Procedures?Costs?
How does it relate to engine performance? What are the specs for N/A and FI setups (How much "milling is required")?
And also for Port and Polishing......what are the specs for N/A and FI? Procedures?Costs?