Yes, its possible to squeeze in twin carbs w/o cuting the htr box. It's a very tight fit though. You'll need the extra short intake manifolds (Irmshir??). And next to nothing on the airfilter or velocity stacks. The other problem would be to get them ATTACHED to the intake manifolds. Remember they have studs on the intake. This would require you to remove the studs and slide the carbs (especially the rear carb) out sideways to clear the heaterbox. You don't REALLY need heat do you?! Just cut the box out. It's a SPORTS CAR! Who needs luxury.