[J.R. Haddad]

Dave, basically parts like intakes and cylinder heads collect more contaminants than other parts, being a direct part of the combustion cycle.
Having them hot tanked helps clean up residue and dirt, grease, oil, etc.
Now not all hot tanks are created equal. The newer ones, which Mike obviously has, will clean out every thing in the intakes and cylinder heads
that a Stock Eliminator Racer doesn't need or want in their engine parts.
Some of them do such a good job, you can actually see the rough cast
in the runners that came from the factory. Now that's CLEAN!!

J.R.