Ok im building a b18 so i can start the season off intell the b20 is done getting sleeved and i got a extra b18head and started porting and i got it to the size i wanted but im not taking the guides out cuz they are in good shape and i want to know what you guys use to get around the guides???? thanks

heres some pics.

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theres alot of good head porters in the all motor section you could talk to

 

patience