bakersfieldturbo Posted June 29, 2009 Report Share Posted June 29, 2009 ok i baught a new hemi head.. with 20 cc domes... and i put a timing plate with +4 ... do i have to run race gas or will i be ok with 91?? or should i run half c12 half 91???? thanks Quote Link to comment Share on other sites More sharing options...
GP1252 Posted June 29, 2009 Report Share Posted June 29, 2009 ok i baught a new hemi head.. with 20 cc domes... and i put a timing plate with +4 ... do i have to run race gas or will i be ok with 91?? or should i run half c12 half 91???? thanks how much compression do you have? Quote Link to comment Share on other sites More sharing options...
johnny boy Posted June 29, 2009 Report Share Posted June 29, 2009 Not in your sig,but do you have any port work?l live in town and before my port work just domes 21 were fine on pump 91.On 20's I don't know. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted June 29, 2009 Report Share Posted June 29, 2009 you'll probably be pushing it wit stock port timings @ sea level. what's your elevatoin? what was the compression after the build? Quote Link to comment Share on other sites More sharing options...
bakersfieldturbo Posted June 29, 2009 Author Report Share Posted June 29, 2009 i got port work done by trinity ... they did stage 3... it says its good for .. Stage III (TT, Aggressive Play,Hill Racing, Drag) - Mid-range power emphasis and as for compression .. i would have to chck it but would i be able to do a comp test with a single carb if so how.. thanks.. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted June 29, 2009 Report Share Posted June 29, 2009 single carb doesn't change compression. wot, and kick 'till it stops moving Quote Link to comment Share on other sites More sharing options...
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