OK all you gasser Experts I'm at my witts end with this Quadra 35 I got from a club member. I completely rebuild it new rings bearing seals carb kit honed cylinder of course. it starts just great and the midrange up to about 4700-4900 no problems will run all day but when I give it full throttle it just starts slobbering and won't rev up. I've tried three different carbs same results. I've played with the point gap no changes so set them back to specs 15 thousands. I thought it might be compression but it seems to have good compression. and if I bring it up on compression stroke it hold it faily well. I'm open to any suggestions. thanks in advance.