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Timing! If you had the chain swapped out, then you Posted by nicknick [Email] (#731) [Profile/Gallery] (more from nicknick) on Thu, 3 Jun 2010 12:33:12 In Reply to: boost fluctuates, Robert, Wed, 2 Jun 2010 15:42:50 Members do not see ads below this line. - Help Keep This Site Online - Signup |
need to have the ign timing reset. I am sure the shop did reset the timing, but just in case, recheck it yourself. If you went to the hassle of a port and polish job, i am very sure you must have a modified distributor/vacuum module? If so, the shop would set it at 16 BTDC, when you want to be at or around 20 with a mod'ed capsule. Check timing, check what dizzy you have, and check if vac module has been modified. Then check timing again. It's the biggest thing to affect boost stability that you can control.
Good luck
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