Manyal brake pushrod length question

Loosen off the 4 Master cylinder mounting bolts a coupla turns each, to create some clearance to the mounting surface, see if that cures the issue.
If it does, you need a shorter pushrod, maybe grind a few thou off the end of the rod. or adjustable ones are avail.

If the front calipers have black plastic pistons, return them for ones with metal pistons, jmo