Re: My project... Now MOTed!!
I've reset the timing to as close to TDC (dialled it in to TDC on the light, then tweaked the dizzy til it was strobing a tiny amount on the "before" side of the TDC marker) and the funny thing is, everything just kinda fell into place. The tickover was spot on 650rpm, (using my DVM's tacho setting), and when I lifted the SU lift pins, the revs just increased very slightly, then settled again; both carbs doing the same. I think this is pretty close to as good as it gets now. Took it for a run, and WOW! so much more power, its unreal
No more pinking, pulls like a train up steep hills, and now really responsive. I could not believe the difference tweaking the timing made, it was pretty pathetic on steep hills before; pinking like whatnot, but not now.
The great thing about the Pertronix setup too, is that you can achieve a very smooth, steady, low tickover, without it seeming to want to stall. The tickover speed was initially about 600rpm, this was after sitting there ticking over while I did the timing. Tightened everything up, went for a spin, and it was about 650 when I got back. Left ticking over, it will creep back down to 600rpm after a while, but no slower. I'm well chuffed now 8)