Yeah I checked those out and bought a set, couldn't pass it up on the price for 6.99. It's worth a shot, it's just I know these things are capable of so much more than where I'm at, and I'm talking stock. I don't use high speeds very often but I live in a nice size city and there's times where a reliable 27 to 30 would be helpful. I've even seen some 80s do around 30 on all stock parts. As for mony0_3, yeah I was wanting to get into some exhaust mods but I'm not trying to go crazy like I've seen some. BUT before I do anything like that I want to get this power issue straightened out.
I was even looking at that plug color chat and it says im a little on the lean side now. So my only option is the main jet adjustment. Then put my 36t on , then exhaust. To be honest I like that little ht carb it pretty much fires up on no choke every time but usually I have to go about a quarter to a third for about a minute during some of these cold mornings we've had.