I need to order my fuel cell. This is going to be a street/show car/cruiser. I can either go with a 15 gal. or 20 gal., will I regret getting the 15 gal.? The guy that is doing all my fab. work is saying that the 20 gal. would be tight but would work. He is suggesting the 15 gal. to free up some room for the exhaust. Will I hate have a 15 gal., also it will have a 540ci, tko 600, and 3.73s gears.

I have a 15 gallon in mine. I don't regret putting it in at all. My car has a blown big block with a T56 6 spd. A 20 gal. will take up a whole lot of space. My car is tubbed, so I was kind of restricted with space. But even if I wasn't, I'd have still gone with the 15. Plenty of range for a street/show/criuser. My last car had plenty of room for any size cell. I still went with a 15 gal.