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GTX JOHN · 02-08-2012, 04:23 AM

I WOULD GUESS only a few hundred between productionheaders of the two sizes.. I have run the Flowteck 1 5/8 from summit on 318 or 360 engine and they were not bad and only $119 at that time. Of course Mark's Perf. Welding are much faster than any mass
produced piece!

02-08-2012, 04:23 AM	#11
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,733 Likes: 2,803 Liked 2,486 Times in 697 Posts	Re: Pure stock 340 Mopar I WOULD GUESS only a few hundred between productionheaders of the two sizes.. I have run the Flowteck 1 5/8 from summit on 318 or 360 engine and they were not bad and only $119 at that time. Of course Mark's Perf. Welding are much faster than any mass produced piece!