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Message: <blockquote data-quote="SpittingCobra" data-source="post: 1046814" data-attributes="member: 17542">Manley h-beam rods, arp rod bolts,  arp main studs, manley flat top pistons, "mild" porting on the heads (b/c I didn't have cash for big cams and all the springs etc.), 5 angle valve job, heads were CC'ed after porting and compression is back at 9.85:1 like factory ironically, deleted IMRC's, stock intake, C head valve covers and COP conversion. All I can think of at the moment..I've been running a D1sc Procharger with their 3 core sheetmetal intercooler 3.5 inlet/outlet, seeing about 10psi on the gauge.. That was during major compression loss though. Pulley is a 3.8" so we'll see what the airflow does with the new porting, compression, etc. lots of variables changing. Fuel system is about maxed out at this point with 42lb/hr injectors, stock lines and rails, and a 255liter/hr pump so I'm not getting greedy, just wanna drive her again!!!!</blockquote>