Carbed car question

Oldschoolpony · 04-10-2002, 01:25 AM

Im running a 347 11 to 1 comp. and vic jr intake with a 750 B&G carb,
My question is what do you all have in your carb's?
Mine:

78 front jet
80 Rear jet
2.5 power valve
35 squirter.

RoadWarrior · 04-10-2002, 11:10 AM

Remember that everyone will have different jets and the carb will be tuned different depending on altitude and humidity and the likes. What runs good for a carb here in Edmonton probably wont work as good for you.

drudis · 04-10-2002, 11:20 AM

My 10.7:1 351W had a 750DP with 76/78 jets, 6.5p/v, and 32squirter (but I think I redrilled that bigger), with a 50cc pump.

Dark Knight · 04-10-2002, 11:54 AM

2.5 PV is kinda low... what cam? whats the idle vac.?

Oldschoolpony · 04-10-2002, 01:26 PM

around 600 lift, and 244 dur@ 50 in and 613 lift 255 dur @ 50 ex.

havent checked vac, but probably no more than 10 or 11 inches even lower

Dark Knight · 04-10-2002, 10:43 PM

so... you'd be better of with a 5.5 PV.. and spread the jetting a little more... the PV is the same as 8-10 jet sizes... it's really worth it if you can get some time on a dyno with an A/F monitor...

Oldschoolpony · 04-10-2002, 10:50 PM

it was dyno'd and tuner said he liked it a little rich, ran 430.8 RWHP @ 6500, but you can smell the exhaust and im wondering if i cant squeeze a little more out of it

Dark Knight · 04-11-2002, 09:23 AM

did you get a copy of the A/F ration thru thr RPM range?
on a DP, you can unhook the secondaries.. get the primary side right.... then hook them back up and tune the secondaries ;-)

gtsr515 · 04-11-2002, 05:41 PM

Honestly, go to a Chevy site and post the same question only say a 350 with the same hardware and you'll get a billion responces.

04-10-2002, 01:25 AM	#1
Oldschoolpony Registered Member Join Date: Mar 2001 Location: Gainsville,Fl Posts: 229	Carbed car question Im running a 347 11 to 1 comp. and vic jr intake with a 750 B&G carb, My question is what do you all have in your carb's? Mine: 78 front jet 80 Rear jet 2.5 power valve 35 squirter. __________________ http://www.mustangworks.com/cgi-bin/...splay.cgi?1546

04-10-2002, 11:20 AM	#3
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	My 10.7:1 351W had a 750DP with 76/78 jets, 6.5p/v, and 32squirter (but I think I redrilled that bigger), with a 50cc pump. __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com

04-10-2002, 11:54 AM	#4
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	2.5 PV is kinda low... what cam? whats the idle vac.? __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

04-10-2002, 01:26 PM	#5
Oldschoolpony Registered Member Join Date: Mar 2001 Location: Gainsville,Fl Posts: 229	cam. around 600 lift, and 244 dur@ 50 in and 613 lift 255 dur @ 50 ex. havent checked vac, but probably no more than 10 or 11 inches even lower __________________ http://www.mustangworks.com/cgi-bin/...splay.cgi?1546

04-10-2002, 10:43 PM	#6
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	so... you'd be better of with a 5.5 PV.. and spread the jetting a little more... the PV is the same as 8-10 jet sizes... it's really worth it if you can get some time on a dyno with an A/F monitor... __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

04-10-2002, 11:10 AM	#2
RoadWarrior Registered Member Join Date: Apr 2000 Location: Edmonton,Alberta,Canada Posts: 317	Remember that everyone will have different jets and the carb will be tuned different depending on altitude and humidity and the likes. What runs good for a carb here in Edmonton probably wont work as good for you.

04-10-2002, 10:50 PM	#7
Oldschoolpony Registered Member Join Date: Mar 2001 Location: Gainsville,Fl Posts: 229	Dyno it was dyno'd and tuner said he liked it a little rich, ran 430.8 RWHP @ 6500, but you can smell the exhaust and im wondering if i cant squeeze a little more out of it __________________ http://www.mustangworks.com/cgi-bin/...splay.cgi?1546

04-11-2002, 09:23 AM	#8
Dark Knight Registered Member Join Date: Oct 1998 Location: Az Posts: 854	did you get a copy of the A/F ration thru thr RPM range? on a DP, you can unhook the secondaries.. get the primary side right.... then hook them back up and tune the secondaries ;-) __________________ 84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg

04-11-2002, 05:41 PM	#9
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	Honestly, go to a Chevy site and post the same question only say a 350 with the same hardware and you'll get a billion responces. __________________ Remember...2nd place is 1st place for losers!

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