Strange problem

[X-TECH MAN]

Originally Posted by Jody Lang

I would guess valve spring pressure. Springs can't keep up in low gear being it is RPMing quicker in 1st than it is in 2nd or 3rd.

What motor combination do you run?

Not to argue with Jody but I disagree with his solution. Im no expert but I always thought that if it was valve springs the problem would show up more in 2nd and high gear. The RPM come so fast that the engine swings thru the valve float before it becomes a problem at the shift point but the slower RPM swing in the upper gears causes it to show up more in the upper gear ranges. This is just backwards from what Jody said. This showed up in the old Jr. stock days for me with OEM valve spring pressures and the early days after NHRA changed the cam and valve spring rules before the "Shubeck" type lifters came onto the scene allowing the crazy valve spring pressures of today. Anyone who builds engines have a comment? Adger are you out there? Again not to argue about it but just what I have experienced.