SM Head Modifications on a budget

290 with a 2.02 valve is doable but lots of work and effort to get there. Pictures are out there on how to get there and I’ve given about every number that I port to, except the short side. Every valve size 2.02, 2.055, and 2.08 have a shortside size but I won’t give that number out. Way way to many hour’s getting there and I’m not done yet.