FlatTrackinIt55 Posted January 1, 2005 Report Share Posted January 1, 2005 (edited) ive got 21cc domes in a pro design-cool head right now and i want about 185 psi in my cylinders. im already running race gas . what size domes would put me up there?? im about sea-level if that makes a diff. and my mods are in the signature should it matter. thnx guys -Blake Edited January 1, 2005 by FlatTrackinIt55 Quote Link to comment Share on other sites More sharing options...
dlnoss Posted January 2, 2005 Report Share Posted January 2, 2005 If it weren't for your porting, I'd say 19cc would be pretty close but it's hard to say since it's been ported. What compression do you have with the 21's? Quote Link to comment Share on other sites More sharing options...
FlatTrackinIt55 Posted January 2, 2005 Author Report Share Posted January 2, 2005 If it weren't for your porting, I'd say 19cc would be pretty close but it's hard to say since it's been ported. What compression do you have with the 21's? 300698[/snapback] about 150 and its been alittle over a year since i had it ported..(03, november) to be exact, but its been rode hard, when its running it runs in nothing but the top of what ever gear im in (usaully about 3rd) so im about to do a top-end on it Quote Link to comment Share on other sites More sharing options...
H250RHATER Posted January 2, 2005 Report Share Posted January 2, 2005 id say 19's too if u want it even higher run 18's compression wise Quote Link to comment Share on other sites More sharing options...
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