jaywill

iTrader: (5)

Should i be running in a 800dp front & back ??? BTW: I HAVE NOTICED WHEN I OPEN IT UP IT FELT LIKE IT WAS HOLDING BACK... TORE THE CARBURETOR DOWN AND IT HAD 73 FRONT JETS AND 67 BACK JETS !!! WTH !!! ???

89gmcs15

iTrader: (7)

I have mine in the front and blocked in the rear as do most I've seen for street cars with the holleys. Race only run with both blocked. Your Pv size should be half your vac at idle for a starting point and adjust from there they tell me.

3pedals

iTrader: (3)

I like to set the PV to just below cruise vacuum - so th pv is close at cruise rpm/ throttle. Any lower and it will have a lean spot when you roll on the throttle from a cruise. Any higher and it may be open during cruise, causing excessive fuel use