Are these the right size jets??
#1
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
Procharged 502's, 6 lbs boost, heads ported.
Holly 750s
Jet sizes:
78 Main
4.5 power valve
96 secondary
power valve plugged
Does this sound right?
Holly 750s
Jet sizes:
78 Main
4.5 power valve
96 secondary
power valve plugged
Does this sound right?
#2
Charter Member #737
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
Have you looked at your plugs?
#3
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
I haven't had a chance. Last time out we got stuck in a huge thunderstorm and on top of that when we got back to the ramp i discovered a fuel leak so I just loaded the boat and took it home. I have since been repairing the fuel tank and have not been able to run the boat.
When we were out the last time it "fell on it's face" at 4800 rpm. Last yr. before the carbs were rebuilt, it went 52-5300 rpm. So I think it is lean but as soon as it is back together I will be checking the plugs.
When we were out the last time it "fell on it's face" at 4800 rpm. Last yr. before the carbs were rebuilt, it went 52-5300 rpm. So I think it is lean but as soon as it is back together I will be checking the plugs.
#4
Charter Member #737
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
I ran a 9# pulley. 84 prim. 96 sec. and all 1/2 fuel lines on a 7.4.