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[QUOTE="Swiss, post: 829151, member: 26417"]
[b]Exhaust for 444[/b]

MasterPhil,
Have you figured out your exhaust fully yet?  Do you have the primary pipe length that will fit?  Your meg length is too short. Running stock ports or are they being worked on?  Rich/SFO, about how much improvement in flow is being seen on ported 426 heads for both the intake and the exhaust?  Is most of the head flow across the lift range or is it rocking the low and high lift flow numbers?  I know that this design idea is for a torque engine, but has anyone ever tried a LARGER carb on the Yam engines?
Phil, in one of the early posts you mentioned 9k as the peak hp rpm, and then said you were going to change it to 9k??  Were you meaning to say something else?
Since I don't have a 426 I will have to ask, what is the stock rev-limiter set up for.  From the previous posts, I figure that SFO typically runs a bit higher rpms than Rich does.  Are there comparable dyno charts online showing Rich's and SFO's 444 engine runs?  I already know, diffferent dyno and different results.  Never hurts to compare the curves.
Swiss
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