Tektall Intake manifold adapter Replace for TBI 5.7 350 adapts a small block 1.75" bore throttle body injection 1" thick Fits Pattern 4-barrel Manifold Alloy Durable - 1313

• 【Fitment】 Tektall Intake manifold adapter Replace for TBI 5.7 350. 【Good Quality】 Made from a super durable and heat resistant composite material. This part is far better that a 1/2" or less steel or aluminum spacer.A full 1" thick . Bores match the bores of the throttle body and taper to match a 4 barrel intake without hurting airflow which is a proven way to increase TQ and airflow.Mounting holes to the manifold are slotted for tuning adjustments. 【High performance】 Tektall Intake manifold adapter's bores are tapered in to adapt the wider TBI unit to the narrow Holley edelbrock pattern 4bl manifold. This is very important many adapters don't have this feature. This can cause poor performance that is blamed on the computer, injectors ect. when it is really the adapter. 【Package includes】 1 X Intake manifold adapter, 1 X Gaskets, 1 X Mounting stud kit （Studs, nuts, and washers.） , 1 X Manual. 【NOTE】 Please confirm the item if it matches your machine before you purchase. All Tektall products will undergo strict inspections and strong packaging before shipment.Please rest assured to purchase.Thanks.