> LSLB RXb Wrote:
> -------------------------------------------------------
> so alright...lets think logically here...what does more carb size do to
> HP curve?
^^progress reports?
Weird thing about jetting is the bigger the carb the bigger the jet needed. This always confused me, change nuthing elese except bigger and the jet has to go up 15 sizes... well as simple as it may sound the bigger the hole the less speed the aur is moving, hence you need a bigger jet just to able to suck gas up. So producing perfect a/f ratio across the rpm board is the goal, carb designs attempt that under different coditions.
. We all wanna dump fuel right before the pipe hits. So obvious answer is just open up the other carb with a thumb throttle as you need more performance...but as you open thumb carb up its decreasing airflow speed across both carbs hence less gas flow.
I think attaching both carbs to one throttle cable and thinking of them as one multicircuit carb would make tuning easier. Say if ya wanted to dump a richer mix toward the top rpm end using the tiny sha. Id probably have it open later and to get it going right off the bat keep a flat slide and possibly drill out the idle passage, two carbs, too many freekin variables.