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Discussion Starter · #1 ·
So we have been finishing the tune on my car (t88h, 3 row, titan fuel 3rd stage, greddy im, built bottom end and head). Drivabilty tuning went perfect with no problems. We added race fuel and began tuning and made 670whp at 19 psi. However, after this point the hp is not gaining with increased psi. At 24 psi it made only 690whp. We changed the boost controller from a blitz sbc-id to a greddy, compression test showed 160 across the board, leak down was perfect, spark plugs look good, added 2 degrees timing and took away 2 degrees, added and took away fuel, and replaced all vacuum lines.

Can someone tell me what the hell is going on with the car?
 

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Discussion Starter · #3 ·
Found the problem. It was a blown gasket between the runners and the im. Thanks anyway.
 
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