Carbon Build-up causing leaky valve seats on local evos?

[RS98GSX]

BP and shell are the best places to fill up. holiday or SA would do that

[9guy9]

What the old timers have told me to do with sea foam is; 1/3 can goes in the oil, 1/3 gos in the gas tank, the last 1/3 suck through a vac line. Drive the car 100 miles change the oil and fill the gas tank. Boom, brand new car!

[1QUICK4]

Originally Posted by 9guy9

What the old timers have told me to do with sea foam is; 1/3 can goes in the oil, 1/3 gos in the gas tank, the last 1/3 suck through a vac line. Drive the car 100 miles change the oil and fill the gas tank. Boom, brand new car!

This^^^

That's wahat I do/did to the bike and Chevelle every spring