Hi everyone , this is my firts time modifying my head. A friend of my is selling his b16 head with jun dual valve springs and ref retainer. Have anyone here this setup? And give me some advice? Cause he's selling it for a good price and i want to buy it cause im going skunk cams very soon in the future. Btw right now my setup.is a b18c5 block witch gsr stock head
And i want a higher redline!!
Any advise would be very great, thxn!