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Old 04-07-2010, 04:19 PM   #124
nrb's70gmc
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Join Date: Sep 2008
Location: magalia,ca
Posts: 366
Re: HEI Ignition Problem

Quote:
Originally Posted by Sinister View Post
You might be at TDC for #6, or the TDC for the exhaust stroke on #1. You can pull the valve cover and see if both valves are closed for #1, but I doubt they will be.
so do i need to be at tdc with #1 intake open or closed?

which valve is which (first/second) when looking at #1
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1970 2wd 3/4 ton- 2004 crate 350 thorley tri-y headers-edelbrock performer eps manifold 600cfm performer carb, crane cams energizer cam,lifters, dual 2.5 magnaflows, mallory HEI, powermaster 140 amp altenator, griffen aluminum radiator.(8 MPG)
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