Edelbrock LD4B
Here's a plot of the first three dyno pulls from Hot Rod, August 1969. John Dianna "Mopar Manipulatin' Part One"
1. Baseline, Stock 340 (including air cleaner) 39 degree advance.
2. Installed Hooker fenderwell type headers
3. Swapped on LD-4B intake. Reinstalled factory Carter AVS, no change in jetting.
After that they did some engine work including preloading the lifters .020" to eliminate the valve float before 6000 rpm. And after that about 15 more modifications and pulls!
Here's a plot of the first three dyno pulls from Hot Rod, August 1969. John Dianna "Mopar Manipulatin' Part One"
1. Baseline, Stock 340 (including air cleaner) 39 degree advance.
2. Installed Hooker fenderwell type headers
3. Swapped on LD-4B intake. Reinstalled factory Carter AVS, no change in jetting.
After that they did some engine work including preloading the lifters .020" to eliminate the valve float before 6000 rpm. And after that about 15 more modifications and pulls!