So on the weekend I decided to install annular boosters on the primary side ( was stepped dogleg ) in my 3310-1 780 cfm holley. See picture.
These boosters have 8 holes aprox, .072” .I left the calibration the same to see the effect.
PRIMARY
PMJ 69 --- PVRC .060---- IFR .036 ---- EMULSION .028 .028 – 6.5 PV
SECONDARY
SMJ 72---PVRC .068-----IFR .036------EMULSION .027 .027-- 6.5 PV
MAIN BODY
PIAB .078--- HSAB .027
SIAB .028----HSAB .024
Here is what happened
40 mph went from 14 AFR to 12.4
60 mph went from 14.5 AFR to 12
70 mph went from 14.5 AFR to 11.5
The question is , where do I go now. Thinking dropping PMJ to 64 ,test and evaluate.
454/500+ hp BBC camshaft 227 @ .050” LSA 107
Intake manifold Professional Products single plane ( Victor Jr replica )