750 to 850 carb swap

Page 2 of 2 Previous  1, 2

Go down

Re: 750 to 850 carb swap

Post  richter69 on June 30th 2013, 12:24 am

no pv's for the win......
avatar
richter69

Posts : 13645
Join date : 2008-12-02
Age : 47
Location : In the winners circle

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  f250mike on June 30th 2013, 12:36 am

I'm running a 4781 holley.
PV plug on secondaries
83 jets front, 92 rear
1982 F100, 472ci, 1.5 60ft,11.44 @ 118mph 1/4 mile

mike
avatar
f250mike

Posts : 627
Join date : 2009-03-28
Age : 54
Location : Rensselaer, Indiana

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  maverick on June 30th 2013, 1:09 am

richter69 wrote:no pv's for the win......

After a good backfire, the pv's will be forever forbidden in his carbs.
avatar
maverick
BBF CONTRIBUTOR
BBF CONTRIBUTOR

Posts : 3052
Join date : 2009-08-06
Age : 66

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  BigRigTech on June 30th 2013, 7:56 am

f250mike wrote:I'm running a 4781 holley.
PV plug on secondaries
83 jets front, 92 rear
1982 F100, 472ci, 1.5 60ft,11.44 @ 118mph 1/4 mile

mike

That sounds pretty close to what I expect will be the final result on mine after a few runs. My buddy has a crap load of Holley parts in his trailer so we I can borrow some PV plugs to try plugging front and rear. I'm going to get one run in with 750 on for a baseline.
avatar
BigRigTech

Posts : 763
Join date : 2013-06-17
Location : Hatchet Lake, Nova Scotia, Canada

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  460vega on June 30th 2013, 3:47 pm

BigRigTech wrote:How much cam was in that combo?
255/265@.050 .589/.615 108sep. It`s still in it.
avatar
460vega

Posts : 31
Join date : 2013-02-11

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  BigRigTech on July 1st 2013, 11:09 pm

I had the car running this afternoon, with the 750 I get about 7" of vacuum at idle and 6" at idle in gear, just figured I would base line it to aid in setting up the 850.
avatar
BigRigTech

Posts : 763
Join date : 2013-06-17
Location : Hatchet Lake, Nova Scotia, Canada

View user profile

Back to top Go down

Re: 750 to 850 carb swap

Post  BigRigTech on July 2nd 2013, 10:54 pm

I have the 850 almost ready, I’m going to do a test run to set the floats on it on Thursday night just to have it as ready as possible to save time at the track on Friday. I went with 82/92’s and a 3.5PV in the front, blocked rear PV. I’m curious to see what she does so I’ll make one run with the 750 for a baseline and swap it in.
avatar
BigRigTech

Posts : 763
Join date : 2013-06-17
Location : Hatchet Lake, Nova Scotia, Canada

View user profile

Back to top Go down

Page 2 of 2 Previous  1, 2

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum