650 proform carb leak down troubles

Well i got rid of the Proform 650 and put on an Edebrock 600. froma member here new in the box by the way!
Runs fantastic!!!
Starts after being warm no problem!
Before it took a good 10 secs to turn over when warm.
Happy days on to the next issue!!!
gear change to 3:23 or 55 or new front bumper, or heater box install or rear spring swap!