carb issues

[101black]

I have a 302 with p heads with work done on them putting it at about 9.5:1 with E cam, shorty headers and victor jr intake with a holley 4150 650 cfm its running way rich I know the primarys are jeted at 67 and I dont know what the secondarys are jeted at. this car was a budget build I have about $4,000 in the car counting purches of the car its self. I know the jets are way to big I just need an idea of were to start.

 

[faststang90]

what is your fuel pressure at. i found this and your 650 car looks like it comes67s in it.found this here
Holley carburetor specifications, list numbers, jetting and tuning tips.

4777 650 (F)71,(R)76 6.5 4150
4777-1 650 (F)67,(R)76 6.5 4150
4777-2 650 (F)67,(R)76 6.5 4150
4777-3 650 (F)67,(R)73 6.5 4150
4777-4 650 (F)67,(R)73 6.5 4150

 

[101black]

Im running at 7 right now the jets I know are way to big I picked up the carb with only 10 miles on it for $100 I know it needs to be brought down for my set up. I also tryed to e-mail holley but as usual no reply from them.

 

[faststang90]

u need to know what the back jets r.what pump are u running i had a kit but i was selling the jets for 5.00 for a pair but i let 1 of my friends take over and he sold all for 5 bucks. i would install the small ones and then read the plugs.

Holley 36-181 Holley Jet Assortment Kit

they sell a jet kit from 64-99.