Carter Thermoquads ~ 'More General Information'

Scampin said

Anybody ever do a comparison between say a 72 340 carb and a 1000cfm comp. one? I started playing with a comp one (yeah, i know, i am cheatin sob), and it is down power all the way through. I havent gotten the tune exactly right yet, but it is far enough off for me to wonder if it will even match the 72' carbs numbers.

Click to expand...

6138S {1972 '340/240' HP} ............................. 4847S {'Competition Series'}

Primary ..... 1 3/8" {1.375"} Venturi = 1.073" ....... 1 1/2" {1.500"}
Secondary .. 2 1/4" {2.250"} ............................... 2 1/4" {2.250"}

Primary Jets ..... .095" ......................................... .089"
Secondary Jets . .137" ......................................... .116"
Metering Rod ..... {.070" ~ .046" ~ .040"} ............. {.064" ~ .030"}

Needle and Seat ... .0935" .................................... 1.250"

Advertised CFM Rating ... 800 ................................ 1000
Actual CFM Rating ......... 737 ................................. 915