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Re: 68 5.3 ls twin turbo build
i too am in Coweta, I ran my 5.3 on some twin on3 70s, it would start spooling about 4g, then I traded them out for a set of their 61mm turbos, now it spools about 3g, much better. that 6.0 should be spooling those up near the 2500 rpm range.. what exhaust ar did you get?
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