Yup.. Dave did my 6X heads.. 260/200 CFM.. picked up 1/2 a second in the 1/4 and 5mph with them and the new cam he picked out.
http://www.sdperformance.com
Scott Schering
70 Firebird 455 12.34 @ 108.2
Http://www.pontiacs.org
__________________
William's Law--
There is no mechanical problem so difficult that it
cannot be solved by brute strength and ignorance.
Scott Schering
Http://www.pontiacs.org