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post #51 of (permalink) Old 09-01-2013, 10:03 AM Thread Starter
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Join Date: Feb 2009
Location: Mesquite, TX
Posts: 1,056
Re: Dyno run question

New report, I changed the MSD plug in (pill) from 6000 to 7000 and took it for a drive. I chickened out at 6500 RPM, with no break up. I guess this shows that the MSD was cutting it off at the 5500 RPM as shown on the Dyno chart, it also shows the valve springs are good up to at least 6500 RPM. I feel better now, but sure would like to get back on the dyno to see how the additional RPM and better flowing exhaust have affected the HP and TQ.


1967 Galaxie 2DHT w/460
Chopped to make a rag top
1972 F100
2013 F150 Platinum
2007 Jeep Commander (wife)
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