Frankie, I don't want to be the "heavy" here but.......
The SCTA really..... looking for the right words.........
Let me put it this way. A good friend has a real nice alky rear engine car. Took it to Davy Uriah, a pro chassis builder to have it upgraded to LSR spec. The powers that be said NO! I've been around LSR for over 30 years & I thought it was well done, but not the people who matter. The record in the class also has some input into the reason to disallow a car not built to LSR spec. Anyway, the SCTA generally does not "like" drag cars as the construction is not the same as LSR. For instance, most dragsters have flex built into them. That would be a be a huge problem in an LSR car.
Visit a few LSR events (if you're in socal got to El Mirage next weekend) and look at cars in the class you're interested in and you'll see, what looks like a rear engine dragster is really a specialty built LSR vehicle.