where did you get the results showing the air gap as an improvement over the LD340?
Stock cast intakes are used successfully on small blocks running in the 10's.
I also made this swap. The LD-340 is capable and not worth the current intake prices to swap IMO, but you will notice an improvement.
I really liked the LD w/a large TQ.
The guys running stock intakes into the 10’s are in the FAST class. IF they switched to an LD-340 or RPM, they would also improve a good bit. Besides not being legal for the class, there engine builds are strangled in a huge way by having to appear stock.
They run very large cubic inch engines with strangling carb, intake, heads & exhaust manifolds. Power would soar with aftermarket parts!
