I'm continuing my never ending quest on trying to dial in my tripower on my crate engine and feel like I've watched just about every video available online for the setups. I just stumbled on something interesting in one of Charlie Price's videos that brought up this question. I've always noticed that it takes quite a bit of pedal force to open the end carbs on my setup...my pedal is mounted to the firewall and I've always felt like pushing so hard could flex the metal enough to crack the paint. He mentions in his video that he doesn't run return springs on the accelerator pumps for the end carbs because of the force required to operate the linkage. My setup was originally built by him bit gone through by another shop before I installed it. The return spring is the one in the pump well that the piston and cup goes into right? Besides helping with return I feel like this spring helps center the pump assembly but maybe I'm wrong? Do you guys with tripower run these springs in the end carbs? The end carbs have small return springs on the throttle shafts themselves.
If you have the room, increase the lever length. You would also need more pedal travel, but it will reduce the force needed to open all three. I rebuilt a Pontiac Tri-power last year and used all the springs that came in the Rochesters. I didn't really notice the effort was that much to open them.
Because of the space constraints I can't really in reasonable the pedal travel. I can live with it how it is....just seemed interesting/odd that he said he leaves them out.
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