oval port or rec port

[big ken sloat]

why would anyone prefer oval port over rectangle port on a bbc or vise versa. what are the pros or cons? thanks ken

[adamsvega]

ALOT HAS TO DO WITH WHAT RPM YOU WANT IT TO PEAK AT FOR IT'S CUBIC INCH.
NEXT IS LOW LIFT FLOW NUMBERS AND VELOCITY.
you can get a good flowing oval port that has good velocity and ###'s to work on smaller bbc's and deliver a wide rpm power band that flies!!!

[Gameracing]

2500--3000 stall = oval port (less than 500 cubes) 5000-6000 stall = rectangle ports ( or over 500 cubes))

[10secBu]

2500--3000 stall = oval port (less than 500 cubes) 5000-6000 stall = rectangle ports ( or over 500 cubes))

461ci, bowl blended 781's, th400, 8" ATI, 5300 stall, 4.11 gear, 3500 lbs. 10.0's to 10.30's depending on air.

[big ken sloat]

thanks for the helpful info guys...ken