Hi, I came to the last meeting for the 1st time and really enjoyed it

will be back this Sunday but I'm looking for a bit of advice re motor. I ran a sp 6.5 last time and found it a bit much, the only other motor I've got is a sp13.5, would this be too slow (sp reventon r so no boost) ?

or should I stick with the 6.5?
Darren