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HP HUNTER · 02-12-2021, 10:07 AM

I have a question: Performance wise how did running a Super Duty 421 in D/SA - ESA turn out for you Carol Wharling? I was very curious waiting to see this run, but never paid attention after the wuhan virus. The intake valve size seemed like it could be a problem.

02-12-2021, 10:07 AM	#603
HP HUNTER Senior Member Join Date: Feb 2012 Location: Colorado Springs Colorado/Thousand Oaks Ca Posts: 606 Likes: 68 Liked 238 Times in 97 Posts	Re: Best Pontiac Powered Stockers I have a question: Performance wise how did running a Super Duty 421 in D/SA - ESA turn out for you Carol Wharling? I was very curious waiting to see this run, but never paid attention after the wuhan virus. The intake valve size seemed like it could be a problem.