datzenmike Posted April 30, 2007 Report Share Posted April 30, 2007 If you are running a square into round header I wouldn't worry, just get it sealled tight. The flange should be the same thickness as the intake flange so that the washer on the bottom bolts will hold them evenly. The only way you might burn a valve is if the header scavenges the cylinder more efficiently and it runs lean. Not likely on a stock application. Quote Link to comment
H20doctor Posted April 30, 2007 Report Share Posted April 30, 2007 I payed 150.00 for my shorty header... from Top end performance in california... its the Forshizzel... lots of HP... and it cleared all the stuff that yr having problems with... I have a 76 620 truck Quote Link to comment
banzai510(hainz) Posted April 30, 2007 Report Share Posted April 30, 2007 Man you really needed to ceramin coat that header. Yes their paint jobs SUCK!!
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