ZILLAKILLA Posted January 4, 2014 Report Share Posted January 4, 2014 (edited) I was just wondering the octane needed for the dome sizes from 17cc up to 22cc from Pro Design Domes. I have 20cc now and sometimes mix race gas 50/50. But I want to be able to use just pump gas 93 in a pinch. Banshee is 2002 with Cool Heads, 0.30 over with Weisco Pistons, Tors Eliminator Kit, K&N Air filters fight off carbs, +4 timing, rebuilt carbs, 300 main jet with 30 pilot.... Also with these minor mods I want to beef up the power alittle more.. Besides porting and welding and balancing crank what else are somewhat inexpensive ways to gain hp. Any info will help.. Edited January 4, 2014 by ZILLAKILLA Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 5, 2014 Report Share Posted January 5, 2014 You can actually see added gains with custom domes. I would go with the 22's if you want pump fuel. If you are serious about more power and are really gonna port it, do a stroker crank and custom domes at the same time. Other mods that you don't seem to have listed that could give you more would be upgrading the reeds, pipes, carbs, transmission and clutch upgrades. Quote Link to comment Share on other sites More sharing options...
oldskool Posted January 5, 2014 Report Share Posted January 5, 2014 Timing plate set at +2/+4 Quote Link to comment Share on other sites More sharing options...
ZILLAKILLA Posted January 6, 2014 Author Report Share Posted January 6, 2014 Yeah, thanks that is all good ideas on more mods. I do actually already have the Boyesen Reeds and LRD Adjustable Race Pipes. I am sure Clutch upgrade is almost manditory at this point, its an 02 and probably still original... Quote Link to comment Share on other sites More sharing options...
ZILLAKILLA Posted January 6, 2014 Author Report Share Posted January 6, 2014 What other changes would I need to make to go to a 4 or 10 mil motor. What size carbs,jets,etc. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 7, 2014 Report Share Posted January 7, 2014 4 mil crank is relatively drop in as it doesn't require any case work. You should get the porting adjusted as well as custom domes to make it work. No spacer plate! Your stock carbs would power that motor for sure. Quote Link to comment Share on other sites More sharing options...
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