Tony D Posted November 7, 2012 Share Posted November 7, 2012 It was always my understanding that the P90-P79 were "for all intents and purposes identical" in regards to performance. Of course that was out there before the Internet exposed thousands to "education"... Quote Link to comment Share on other sites More sharing options...
skirkland1980 Posted November 8, 2012 Share Posted November 8, 2012 The exhaust port in both heads , are ok with mild mods and just blending , its the inlet that needs work , and the 44mm intake will make 300 hp with a stock valve , its only small gains with a bigger valve with a big bore with a small bore the 44 mm is spot on , working the seat and short turn and some blending is all you need in your setup , Is there any benefit to altering the intake port spacing when enlarging the ports? Like offset the port to one side or the other or just keep them centered with the original spacing? Thanks Quote Link to comment Share on other sites More sharing options...
madkaw Posted June 5, 2015 Share Posted June 5, 2015 Still using your flow bench? I've read articles about this flow bench and considered doing this. Did you ever make your sized bores? Quote Link to comment Share on other sites More sharing options...
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