Hello all,

I plan on making a velocity stack to put on my Honda GX25. I am thinking about having a piece of tubing curve 90 degrees as it comes off the carb, with a trumpet shaped inlet end. Do you conversion gurus think it would be better for the inlet to face forward into the airstream (I am not using a cowl on the airplane) to take advantage of the ram air effect from the propwash and forward motion of the plane, or should the inlet face backward away from the prop? Or do you think it would be better not to curve the stack at all and just have it come straight out of the carb?
Thanks,
Charlie