Run it as is.
AM mode.
Turn the radio down until the amp is dead keying approx 70/80 watts.
Do not exceed 20 watts peak input and put a fan on it.
SSB do not exceed 20 watts peak input and put a fan on it.
If you want to change anything put some dam grommets on the power leads, by-pass the shitty fuse set up, fuse the power leads at the battery, and put a fan on it.
Oh, and put a fan on it.
73
Jeff