8BA Holley 94 Power valve & Jets

[Phil Gillespie]

Running a single carb 8BA on 8RT Flathead in 38 PU.
Carb is fitted with 51 jets and 5.5 Power Valve.
I understand correct jets to be 51
Need confirmation of correct Power Valve size is 5.5 ok or should it be smaller? like a 7.5.

Thanks for advice as always
Phil
NZ

[Phil Gillespie]

To qualify the 8RT is running an Isky Max 1 cam. Idle vaccum is 15"
Phil
NZ

[ken ct]

Your PV and jetting should be ok. PV of 7.5 is not smaller or bigger. 5.5 is a tad slower to open in the cycle. 7.5 opens almost right away and dumps loads of gas into the system.Usually bogs down with too much gas. Found out long ago that 5.5 work much better. With a cam you might need or go up to a 6.5 one. Depends what its doing if anything. That's why you got to go to 3.5 or 4.5 PV's in a 2x2 setup. ken ct. Do you have a problem????

[Phil Gillespie]

Thanks do much Ken.
Was just going through all systems on newly aquired vehicle.38 PU
Wabted to ensure all is set up right and now just putting some miles on to observe at open road and around town running. Will go with the recommended 5,5 PV
Thanks do much for advice and confirmation

Phil
NZ

[ken ct]

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Originally Posted by Phil Gillespie

Thanks do much Ken.
Was just going through all systems on newly aquired vehicle.38 PU
Wabted to ensure all is set up right and now just putting some miles on to observe at open road and around town running. Will go with the recommended 5,5 PV
Thanks do much for advice and confirmation

Phil
NZ

Let me know how it runs. We can make adjustments. ken ct.