INTERLUDE: Back home in Nova Scotia now, and what a circus. Yesterday evening the loons were calling each other in their traditional Spring Mating Ritual -- If I hear it again this evening, I'm going to stick my movie camera out the back door to record. Then there was a ruckus in the dog's barn (that she doesn't actually sleep in!). So I put on my shoes, opened the door, and out we came -- dog going at one side of the mini-barn, cat going the other, and I with my trusty mag-lite in the middle. I arrived at the scene just as the cat and the dog collided as they circled into each other. We treed the varmit -- a big bushy raccoon. I later thought that I was glad it wasn't a bear -- armed only as I was with a lame 11 year old mutt, a cat, and a flashlight. Today there are seagulls and cormorants diving in front of the house, for the Spring migration of kiack (gaspereau) that swim up into the lakes to spawn. You had to be here. Off topic, I know, but sometimes you just have to take a break.
That is a big improvement. The problem is knowing when to stop.
Wobbly, you're right. And without a Dyno run, who knows. All I know is that with the new motor (92mm x 75mm stroke) vs the old motor (84mm x 90mm stroke), and with 1500 more RPM, I didn't improve in 2010 over 2009. So I'm guessing that in spite of the extra Revs, the motor just couldn't inhale any more mixture. With this new head, along with 2mm bigger carb (flat slide, at that), and a shorter exhaust, I hope to have the right combination. Unlike drag racing, we can't make a single change every 2 weeks and go back to the track, so it'll have to be all or nothing. So here is a photo of the new intake port vs. the stock one. What do you think?
Tom