I agree with Kathleen that Versafine inks work well for solid stamps. Also the very juicy ColorBox inks - but if you're not embossing them, be careful to give them time to dry before doing anything else with your image.
I assume it's a wood mounted stamp you're trying to use. You could unmount it and buy an Impression Obsession Mega Mount ( Impression Obsession Rubber Stamps: Cover-a-Card Stamps & Mega Mount
) which I find works wonderfully for large unmounted stamps. I've unmounted all my large background stamps and use them with the Mega Mount and have much more success.