Kohler SV740 Ignition coils

[BaronVonChickenPants]

Greetings all,
I have a zero turn with 27hp V twin Kohler SV740, I identified one of the ignition coils was failing as 1 cylinder would cut out intermitently, I replaced the pair of coils with this genuine chinesium set https://www.ebay.com.au/itm/364062792368 and installed and gapped with a business card.

While it runs smooth and does work I am finding it generally down on power from when both original coils worked previously.

Have I gapped them wrong or is there a better coil I should use?

Thanks gurus.

 

[BaronVonChickenPants]

For those playing along at home, the coils were fine, it turns out an intake pushrod had collapsed as well, back to full power once replaced.