Originally Posted by
22Racer
Try the 20% if you need more power go to the 30%. As for shimming, the Ebm5 is shimmed much tighter than a stock 5 port. You can not take any shims out because there is only one.
Rex
Thanks! Which 20% though? I listed two. One has 14% oil and the other has 12% oil.
- Paulie