What Size Domes Should I Get

[Wheelie Ripper]

Hi, I am looking to squeeze a little more power out of my shee and was wondering what size domes i should get. It is bored .040 over, PT mid range pipes, +5 timing and i have 125 PSI of compression on both sides. Would i still be able to run 93 octane if i ran 21cc domes? Thanks

[bassmaster345]

I just asked this a couple days ago and here are the answers I was given, depending on your elevation you should be able to run 20cc domes on pump gas. Here is a chart to reference to( scroll down toward bottom of page). http://www.nossmachine.com/banshee_heads.htm

[firebanshee]

Hi, I am looking to squeeze a little more power out of my shee and was wondering what size domes i should get. It is bored .040 over, PT mid range pipes, +5 timing and i have 125 PSI of compression on both sides. Would i still be able to run 93 octane if i ran 21cc domes? Thanks

It all depends on your elevation, if you are at sea level then you are on that fine line being bored .040 over and running your timing at +5. If you are above sea level than no worries.