That wasn't on nitro was it? Or was it? Been following this thread since I'm the other guy with the Chrysler Hemi painted engine. I really want to hear that thing rev burning liquid horsepower. I've played with the stuff myself, mixing up my own 1/2A Texaco fuel for SAM antique model airplane contests. I run 35% in a decompressed Cox .049 reed valve engine and manage 4 to 5 minutes run time on 5 ml of fuel, in a very light 1/2A Playboy Senior. That thing is almost out of site in 5 minutes...oh wait, this it the minibike forum. Anyway, I did manage to watch all 50-some episodes of the Surfers. My wife wasn't pleased but I was thrilled. Those guys were great! As a reader of Hot Rod magazine since the early `80's I've heard bits and pieces of their story but not like that. Thank you for that link. Nice work on your engine. It's great to see folks thinking outside of the box and fabbing up their own parts. I will continue to follow this thread with much interest (and pretty much everything else you choose to post).