ok im working on the tune on my holleys. two 600 carbs
im trying to work out a secondary stumble right now.
i had secondary PURPLE springs, they created a big bog when they opened.
i NOW have the BLACK springs in the secondarys. the bog is less but it is still there.
i pulled off one of my metering plates right now and it is stamped "39" which is equal to a 70 JET
i was going to open this up to a 72 jet which is a drill bit size .079
1969 HOTROD told me this:
I had spent some time tunninga a pair of those on a hot small block.
open up the transition holes in the secondary jet plate to .032 and this should cure your bog from the light secondary vacuum springs
what holes are these i have my holley book and it tell me "main metering restrictions" ( the jet size hole) and the "idle feed restriction"
what is .032 being referred to.
im looking for advice on taking care of the stumble.
if i start from a dead stop and run it thru the gears it feels fine (tire spin a lot) but if im cruising and step on the gas the car goes (tires light up) then a bog ( tires stop spinning) and the car recovers and starts pulling again.
let me say this it is the secondary's that are the bog NOT the primary side.
thanks for any input going back out and take other plate out to see if same size.
im trying to work out a secondary stumble right now.
i had secondary PURPLE springs, they created a big bog when they opened.
i NOW have the BLACK springs in the secondarys. the bog is less but it is still there.
i pulled off one of my metering plates right now and it is stamped "39" which is equal to a 70 JET
i was going to open this up to a 72 jet which is a drill bit size .079
1969 HOTROD told me this:
I had spent some time tunninga a pair of those on a hot small block.
open up the transition holes in the secondary jet plate to .032 and this should cure your bog from the light secondary vacuum springs
what holes are these i have my holley book and it tell me "main metering restrictions" ( the jet size hole) and the "idle feed restriction"
what is .032 being referred to.
im looking for advice on taking care of the stumble.
if i start from a dead stop and run it thru the gears it feels fine (tire spin a lot) but if im cruising and step on the gas the car goes (tires light up) then a bog ( tires stop spinning) and the car recovers and starts pulling again.
let me say this it is the secondary's that are the bog NOT the primary side.
thanks for any input going back out and take other plate out to see if same size.
