[DAVID GAGNARD]

Lloyd;

Not all neccessarily true,single plane intakes may produce more hp on a given engine,but are primarly designed for higher rpm ranges,dual plane intakes are designed to produce torque and hp in lower rpms ranges than a single plane intake....Check in a catalog such as Summit and they will give the recommended rpm ranges for specific intakes. They sometimes also give the heights of the intakes....there is a single plane intake made specific for low or little hood clearance...a buddy had to put one on his 377 stroker in a 90 model Mustang,can not remember the part number,but it is about an inch or so lower than most other single plane intakes....

As a general rule of thumb, the dual plane intake is a little lower than a single plane intake.....If you plan to do mostly street driving,you may want to consider a dual plane intake over the single plane type....depends on your engine and use for the car....

hope this helps,if not the Summit tech line will usually provide such info for you and should have intake heights if you give them a call....

David