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Old 11-17-2013   #254
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,685
Default Re: TOP END REFINISHING

Quote:
Originally Posted by Schrade View Post
Would I have to pull the IH's to remove the sec vac system? Is it reversible? Hasn't someone mentioned 'fixing' the secondary Valves OPEN? THAT I have thought of here...

Where the link here Cliff?
I just tie-wrapped mine open. Later on I took the throttle plates out and left the shafts in. Need to modify the cal so the ECM thinks the secondaries are OK and won't throw a code. I ran like that until I put on ported heads and cam. With just top end done, it pulled 400 at the wheels w headers.
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