Every time I read Pat's article there is another statement that makes more sense than it did the prior time. I'm setting up my second dual Rochester BC intake (Fenton) on a 235 with street cam, vacuum 15-16, in a 51 pickup, stock drive line but with 3.55 ring and pinon.
My concerns/questions are:
1- When in gear and moving off idle gently there is still some hesitation but not as much as before. What happens if I continue enlarging the off-idle passage and make it too large? How do I tell if I've gone too far?
2- whenever engaging the clutch there is a significant pause, drop off (hesitation) then acceleration, that has not changed. It happens with every gear change.
3- Should I, and if so when, trim the power valve springs?
This is where I am now. Referring to the numbered paragraphs in Pat's article:
1. I have not compared passages in jet stands but will do so tonight.
2. My power valve springs are identical and have not been trimmed.
3. The power valve pistions are identical
4. the check ball for the power valve is correctly installed
5. The accelerator linkage is identical
6. I've installed new # 53 jets
7. floats and neoprene seat assembles are correct
8. easing into the off idle circuit is improving but still there
11. Increasing drill bit size one at a time but still experiencing hesitation
I have extra carb bodies and can swap them out if I make the off idle passage too large. Am I still going in the right direction?
I'm also learning about the importance of good linkage and will be upgrading it when I go to Reno in August.
Thanks for all your help!
Ted
