Quote Originally Posted by nitrowarrior
I would prefer them clean but it does also connect to the exhaust port and will push the excess out the exhaust manifold. Be cautious though, if one of the exhaust valves are open, the carbon can fall into the engine and can also hang up the valve off of it's seat and create a miss and make you scratch your head wondering why.
And because of the above mentioned..if it was me...it doesnt cost toom uch for a top end gasket set...your already needing intake gaskets anyway..Id pull those heads..do the cheapy way of cleaning them by power washing them, the soaking them in degreaser and power wash them again...blow em out best you can with compressed air to dry them ( and while the wife is out and if the rack inyour over can handle it bake those sucker dry) . Of send them to a shop that still uses tank method of celaning which should cost you more than $30 or so.

By the way..without #s nobody can say for sure...but if I had to guess Id say those are the small peanut port heads.