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I just added a qsv but I’m getting the opposite results. I have a stock block vvti s1 cams. Qsv with f1 manifold. S366 1.0 a/r it feels like the motor is chocking until the valve opens.
 

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Moderator, l337 M0d3r4t0r
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I'm wondering what you guys are doing for timing on cams and VVTI its really easy to bend all your intake valves with the wrong VVTI settings
 

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I have a stock block with s1 cams and had a short to ground on my vvti oil control valve. The intake cam was advanced to its max position while idling. I did not have any piston to valve or valve to valve contact. If I had higher compression not sure if I’d have been so lucky.
 
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