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Hey guys I have a 7mm cub that i just got a set of 38/40 lectron hv alky carbs for Im having the cases and the jugs ported right now and the guy thats doing the work told me that my 21cc domes would work good. What do you guys think
 

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QUOTE (onebig04dodge @ Mar 30 2009, 09:56 PM) index.php?act=findpost&pid=36358Hey guys I have a 7mm cub that i just got a set of 38/40 lectron hv alky carbs for Im having the cases and the jugs ported right now and the guy thats doing the work told me that my 21cc domes would work good. What do you guys think
Get a set cut for alky. You'll see a better gain.
 

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Alky has a different combustion and flame propagation properties than gas does.

That's how it was explained to me, and I've heard the same from several respected builders that you should have domes cut for alky on an alky motor.

I honestly can't "explain" how the domes look different, but I'll attempt it.

The edges of the dome on gas are rounded off more, whereas my alky domes are squared off.
 
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