Holley 4160 carb tuning questions

[WisconsinCutlass]

What do you know about this engine? The reason I ask is it has aftermarket pushrods which leads me to believe it's had some head and or cam work. Olds valve train is non-adjustable and improper head work can lead to lifter preload issues like you have. Also broken or worn rocker bridges, worn pushrods and worn rocker arms can also cause loss of lifter preload. You need to check all of the pushrods when their respective valves are closed.

As for the engine I can tell you what I was told about it. It was in the car when I bought it.
Oldsmobile 350 from a 72 Cutlass
Ported, polished, 5angle valve job heads. They are olds 7A heads
Edelbrock performer rpm cam, lifters, spring, intake kit.
Cam specs : http://www.edelbrock.com/automotive/mc/camshafts/oldsmobile.shtml
Harland sharp roller rockers
Petronix hei distributor
Flat top hyperutetic pistons (was told on here they don't make these pistons)
1-3/4" long tube headman headers into dual 3" exhaust

 

[WisconsinCutlass]

Quick update cause it's been awhile. I got everything almost back together. While putting in the temp sensor for my electric fan I stripped the threads in the brass adapter. Then I proceeded to order the incorrect brass adapter cause I didn't take my time and look at a pipe thread chart. The new, hopefully correct adapter is supposed to be here Thursday. So hopefully Friday or Saturday. I try to start the car and see how I did with the intake gasket.