The last issue was trying to find out why my light to medium accel was showing 16+ on the A/F meter. I delayed the seondary from 40% to 60% and also added a more aggressive primary pump cam and this helped a little but was still showing mid 15's to low 16's and the car does not like the upper 15's and started surging under accel.
Since I need more fuel under accel and since reading more about the A/F ratio of E10, I decided to richen my existing 30-70mph cruising A/F range that was showing 14.2-15.4. Since my driving season is quickly coming to an end, I decide to make a few changes at the same time:
60 primary jets to 62's
.069" PVRC's to .071's
9.5HFPV to a 10.5HFPV
green primary pump cam to an orange
With these changes there was only about 20 minutes and 2 degrees difference in outside temps (high 50's) and what a big difference in power!! My light/medium accel was now showing 13.8-14.4. I could feel the difference in power while the A/F gage was in this range. My cruising range richened up by about .5 on the gage. The E10 chart shows stoich at 14.1 and I am happy with mid 14's instead of low 15's from 30mph to 4000rpms.
What really surprised me is how flat my A/F range is now.

30mph = 14.2
35mph = 14.4
40mph = 14.2
45mph = 14.6
50mph = 14.6
55mph = 14.4
60mph = 14.2
3500rpms = 14.2
4000rpms = 14.2
I am done with the primary side!!!!! (62 jets, .064 IAB's, .039" HSAB's, .031" IFR's, .071 PVCR's,)

I then looked at my 50mph to WOT and found a spike to 12.2 and then it leaned out to 13.0 at the shift point. After reviewing the E10 chart, the WOT should now be 12.2 instead of the gasoline 12.6. I am going to richen up the secondary side by 2 jets and see if that keeps the A/F in the low 12's.
I also made a rolling start to WOT and my A/F spiked to 12.4 and then leaned out to about 13.4 at the shift point. This is too lean so I am hoping that the secondary jet change takes care of this.
The last thing that I tested was the overall hard acceleration with the 62 jets and the .071" pvrc's and I was surprised. The car pulled harder now with this combo than it ever has. It likes the .071" pvrc's with the 62 jets.
I have no issues with the main side of the carb and now I just want to tweak the secondary jetting with the 60% delay.
Note: I still have the secondary pink pump cam turned counter-clockwise as far as it will go which creates a gap between the pump cam and the pump arm screw. There is no drivability issues with this setup during my normal driving which is fairly aggressive and my WOT A/F is 90% there.

UPDATE:
75 degrees: 80 secondary jets made my 50mph to WOT show 12.8. The 78 secondary jets made a 13.4 WOT run, so it looks like I need to try some 82's next.

Last edited by YO7_A66; 10/11/11 07:53 AM.

1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)