A wide Guts Strangle is a low profit position. It is equivalent to selling the traditional Strangle with the same strikes.
For example, if XYZ is $100 and you sell the $90 call and the $110 put, it's the same thing as selling the $90 put and the $110 call. The time premium will be low and there's a reasonably high probability that you will earn that time premium.
There may be some problems with the Guts that you are evaluating.
If you aren't looking at the bid prices in real time, you may be looking at bad quotes, resulting in the appearance of an overvalued position.
Dividends affect option premium. They increase put price and decrease call price. If there's a pending dividend, it may be skewing the total net premium.
Because these options are deep ITM, they will trade with low time premium. Any excess selling may force the bid below intrinsic value and any option owner who sells will trigger an early exercise as the market maker executes a Discount Arbitrage. The person assigned may be you and you will need to have the cash backing to meet the margin requirement.
If there is a dividend, you are also more likely to experience early assignment.
There's no way to make money on this prior to expiration unless the B/A spreads are wide, you place a BTC order for a lot of price improvement, and someone graciously takes the other side of the trade. FWIW, not gonna happen.
The B/A spread won't be the problem if the stock starts to slip away from you before expiration. What will be is that you're going to be losing money before you reach either short strike. That's because as either option approaches the strike, time premium is going to increase (delta is dropping from near 1.00 to about .50 when ATM). .
Make sure that you have all of your ducks in order before attempting a Guts Strangle