Hard to start when cold

Mikes68charger said
We just did "dot to dot" This engine is and was bone stock the only major change has been the intake from a 2bbl to a 4bbl

And it started and ran fine prior to the change? Just eliminating and narrowing down what could.

So when you did the chain are you 100% sure the #1 piston was at TDC and the balancer pointer was pointing to "0"?