Speedmaster intake porting. Hopefully I can make something out of this
Trying to do some research on why the LD340 intake is so much better than the Speedmaster and looking at pictures of both it’s pretty obvious. Looking at the runner size and shape they copied the Edelbrock RPM and must have used LD4B port sizing. I gotta get moving on my 408 for the 2021
race season but I gotta try a few things first. I can send this thing to him with a good set of heads and losing 50-60cfm with this intake. Look at the runners in front of the carb pad on both these intakes
Trying to do some research on why the LD340 intake is so much better than the Speedmaster and looking at pictures of both it’s pretty obvious. Looking at the runner size and shape they copied the Edelbrock RPM and must have used LD4B port sizing. I gotta get moving on my 408 for the 2021