I've been having a hard time figuring out why my gas mileage is under 10mpg and why I can't pass emissions. I found out yesterday that I have burned valves in the #3 cylinder. I can get my head redone locally with stock size valves for $150 plus parts. I know there are some vendors out there with reman heads, Hawk and Asian come to mind, but I don't have first hand knowledge or opinions of them. Yes, I searched, just not much found about them. Are the built heads, like the Sumo 1 and 2 worth the money? Should I at least go for the bigger 1.6 valves? I have an 88.5 with a 92 EFI on it. I have a K|removethispart|@N cold air intake from TT, DT header and 2" exhaust w/cat and turbo muffler. Even with the bad valves, I was doing 70 mph on the interstate the other day with my 235s and stock gearing. My Sammie has 64k original miles on it, so compression with a new head shouldn't be a problem.
I would appreciate any info you might have.
Thanks again.