I used "FIT" very loosely. All header fit is bad. Some are impossible. Some of the manufacturers forget that you mightwant to change sparkplugs, or even use plug wires. Then there are those that hit on everything and need to be massaged with a ball peen hammer. I just found the Hedmans the least bad....if that makes sense. I can see why people stay with manifolds. Thankfully unleaded gas cuts down on the plug changes. On our L78 I've only changed plugs once in the 34K miles that we have had the car.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.
