Small Block & Big Block Chevy Specific - Carb question for bracket racers
Do any of you guys run power valves?
05-02-2011, 12:39 PM
No. But you do have to put a bigger cam and squirter on the accel pump circuit to eliminate the stumble. Also jet it up a couple of sizes.
05-04-2011, 11:17 AM
I do not run a power valve
Thanks for the input guys. I have been running a PV in the front with about 8-10 sizes less jet, a 33 squirter, and a 50cc accel pump. I toyed with the no PV idea last time out, I squared up the jets at 86's and the car ran fine, but felt alittle ragged at the starting line footbraking. I will probably run a PV for the summer with 74/84 jets, but may try running without one again this fall.
05-27-2011, 11:19 AM
Since I don't know you I'll ask a question. What do you do with the car? If it's strictly a drag race car I would block off the power valve and up the jet sizes. But if it's street driven it's a different story.
Al 74 Camaro, 489 tall deck, PG, Dana 60.
06-13-2011, 02:19 PM
Street or Strip, we never user P/V valves
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