Holly 830 HP500
#1
Registered
Thread Starter
Join Date: Nov 2000
Location: Sevierville,TN
Posts: 131
Likes: 0
Received 0 Likes
on
0 Posts
Holly 830 HP500
I am switching from a 800CFM marine to a Holly 830 (chokeless race carb) on a HP500 (9.3 TO 1, 108 INTAKE LOBE CENTERLINE).
Should I start with the same jets ??????
Primary port 81 starboard75
Secondary port 89 secondary 93
6.5 powervalve
The secondary metering plate on the 800CFM Marine was leaking fuel into the intake from the bowl????
What would cause that????????
THANKS!!!!!!
Should I start with the same jets ??????
Primary port 81 starboard75
Secondary port 89 secondary 93
6.5 powervalve
The secondary metering plate on the 800CFM Marine was leaking fuel into the intake from the bowl????
What would cause that????????
THANKS!!!!!!
#6
Registered
RickR,
If you are running the Holley #9381 830cfm, you have two power valves. Your jetting will be very close on the primary and secondaries. You will have best results with the staggered jetting, although it will be different than than the 800.
I might ask, why did you change from the 800 to the 830??
If you are running the Holley #9381 830cfm, you have two power valves. Your jetting will be very close on the primary and secondaries. You will have best results with the staggered jetting, although it will be different than than the 800.
I might ask, why did you change from the 800 to the 830??
Last edited by TomR; 05-09-2004 at 08:07 PM.
#9
Registered
Thread Starter
Join Date: Nov 2000
Location: Sevierville,TN
Posts: 131
Likes: 0
Received 0 Likes
on
0 Posts
THANKS EVERYONE!!!!!!
FIXED!!!!!
The idle bleed hole in the top of the main body was clogged. Causing fuel to siphon.
She's purring like a kitten :yes:
FIXED!!!!!
The idle bleed hole in the top of the main body was clogged. Causing fuel to siphon.
She's purring like a kitten :yes: