How do you bridge/????can i do it myself????? how much can it cost???????is it safe for the car????

 

haha you really need to do a search and read up more. It is a porting style called bridge port. It really isnt the best for street use, alot of overlap, high idle, worse gas mileage. You would need to rebuild your engine and have it ported by someone who knows what they are doing. So you are looking at ATLEAST $2k...