Sorry fellas...I have not worked on the car today. I will check the throttle blades next.

do check for slack in the throttle cable as suggested

It was the throttle cable. I went out at 6:30 am this morning and looked at the throttle blades. the fronts were closed but the back ones were open a bit. As soon as I took the cable off the back blades went shut! I will adjust the cable later,don't want to piss the neighbors off! Thanks for everyone's help!! Ted

Something still not right, as cable opens front blades and the secondary opened by the linkage and flex spring after the front open. Unless cable was interfering with secondary operation.

I had to change the bracket from a Holley to an Edelbrock. I looked at the throttle cable bracket and there is about a 1/4" difference in the length of the cable. I will adjust it and see what happens.

Just got it finished...It is idling around 800 rpms and sounds great! Thanks for everyone's help!

glad you solved the problem relatively easily.

Sometimes we overlook the simple solutions and go right to the hard things!!

Good job Ted! Looking forward to seeing this car someday.

Looks like cudaman nailed🎯 this one while we were chasing out tails LOL

I guess you did not read my first post 1500rpm is way too high for a vacuum leak to cause. I questioned actual throttle blade position on my first post But it does show how a group can be drawn down a rabbit hole.

boy, ain't that the truth !

My bad