Just got to mocking up my new 321 stainless LSX headers from Tom Nelson at
http://www.nelsonracingengines.com/. He did a fantastic job, quality is amazing. These clear the early muscle cars and you have the option of locating your turbos where you'd like them as he makes the band clamped extension for the turbo mounting as required. They clear the Synister front drive I'm running, but can be located where you want to clear other arrangements. They also have been changed to clear the taller aftermarket valve covers that many want to run, in my case the beautiful carbon fiber units from John at
http://www.carbonfibervalvecovers.com
I especially like how Tom got them low in the chassis which is going to allow the downpipes to run under the header and give tons of hood clearance, as well as keep the weight and heat lower in the engine compartment.
Jody