First, my combo.
360 based 408". 9.9:1 comp.
EQ magnum heads w/2.02 int.
Hughes hyd roller; 236/242 @ .050, .521/.525 w/1.6 rockers, 107 LSA installed at 104.
Air Gap intake and 1 5/8" headers.
Now my problem. When I first put this thing together I had an Edelbrock 600 I used to get it running. I got a used Holley Street Avenger 770. I took it apart, cleaned it and put in new gaskets. I did not see anything amiss but I'm no Holley expert. Well this thing just will not idle. I have to keep the throttle open to keep it running. I did not see any fuel out of the boosters when trying to let it idle only when opening it up. Ideas? Please help. By the way I'm using the Edelbrock now which dosn't idle great but it is drivable.