Push Rod and Rocker Arm Problem
Once you have the wipe pattern correct, use an adjustable pushrod and measure your required pushrod length. The pushrod should be the last part you order when you assemble the motor, after setting the wipe and taking a measurement. I never but pushrods until the motor is together and I can get an accurate measurement of the final assembly.
The only other reason i could think of for no contact is that you forgot to install the base strip that goes under the rocker arms.






