carb. help

[car9fan]

I need some advice on what size carb. i should use,To make a long story short i uesed a software program and put all my info about my motor in it and it says with a 650 i would pick up 4 to 6 10.s in the 1/4 mile,The car is a little flat off the line. its A 1969 BLOCK THATS BORD .40 OVER WITH RPM EDELBROCK HEADS WITH THE RPM PERFORMER INTAKE I HAD KEITH BLACK FLAT TOP PISTONS BUT I RECENTLY UP DATED THE KEITH BLACK TO.200 DOME PISTONS IT WAS 9-5-1 COMPRESSION NOW ITS 10-5-1.IT HAS A COMP CAM 240. AND 540.LIFT.ITS A 700 DUEL FEED DOUBLE PUMPER WITH MECHANICAL SECONDARY.THE IGNITION IS A MSD 6A BOX/ AND MSD COIL AND THE MSD BILLET DISIRIBUTOR.THE TRANS IS A BEEFED UP C4 WITH A 10IN 3000 TCI STALL CONVERTER/IT HAS A 8IN REAR WITH A FULL SPOOL AND 410 GEARS. ronnie's racing

[GGRacing]

how lean are you running the 700, and what jets are you using? What are you shift points when racing?

[car9fan]

Thanks for the reply,Iam useing 69.s in the front and 76.s in in the rear i shift at 6500 rpm's. I just did;nt want to spend 3 or 4 hurdard dollars on a carb. that migth slow me down. Thanks Ronnie

[GGRacing]

That 700 is preaty leaned out, iv heard that by running to big a carb can overload the motor even being lean, a 650 might help especially off the line, but im not sure how much, see if you can borrow someones 650 and test it out is my best guess

Steven

[car9fan]

Thanks for the info. Iam going to check around and see ik any of my freinds as one i can use. CAR9FAN