alright..so i was looking at my dyno graphs from when i ran the t/a.

i was looking at my air fuel ratio...can somebody decipher this for me..

alright heres how they do the runs..you get going in drive {or whatever your 1:1 gear is} around 35 40 mph..tht for me was roughly 2100 2200 rpms.

heres what my graph looks like

2200rpms a/f = 13.95 < this was a steady cruise,while waiting for the GO.
2500rpms a/f = 13.89 <this was JUST before i got the go signal.
2600rpms a/f = 15.02 <this is immiedatly after i got the go signal and punched it.
2700rpms a/f = 12.00
3000rpms a/f = 12.21 <its basically a slow steady rise from this point forward.
3600rpms a/f = 12.47
4000rpms a/f = 13.00
4500rpms a/f = 13.13
4800rpms a/f = 13.34
5500rpms a/f = 13.42

my question to you guys is..what kind of tuning tips you have? the carb is a 650 holley
double pumper,with no choke tower at all. and i was looking at the hp and tq figures again,heh i misread aparently.

HP=200.04 @ almost dead on 5k rpms
TQ=251.38 @ 3800 rpms

btw the front jets are 68s..the rears were 72's ive since swapped the 72's out for 74's.

anybody have any additional help or info for me? i want to get this thing tuned up good for the dyno/track

 

i donno i'm trying to figure out my holley too, you might want to try the carb. boards:lala:

 

Your A/F ratio says you're lean toward the top end.... should be in the 12.6-13.1 range, most engines like about 12.8. Your primaries are OK, that initial richness is the pump shot.

Look at your secondary jets; increase them by about 7% cross-sectional area, which is about 5% diameter. For instance, if they're 70s, increase them by 5% of 70, or 3.5, to 73 or 74. That should put you in the ballpark. I doubt it will make a huge difference, but it should be good for another 10-12 HP.