A carburetor and a throttle body both feed air into the engine, but confusingly, a carburetor has its own throttle body. Here ...

This is the twin TBI setup attached to the top of the new cross-ram manifold. Note that fuel enters the left TBI unit first and then on to the right unit before being returned to the tank. Although ...

The controversy between carburetors and EFI has always been about complexity and price. Carburetors are simple—EFI is not. Carburetors are cheap—or at least cheaper than EFI. Those points have not ...

We have to admit, we were somewhat perplexed when we decided to apply the Holley Terminator Stealth EFI system to our modified 5.3L LS. Our bewilderment had nothing to do with the ability of the ...

We love our carburetors. For the last 12 years the owner of this 357ci small-block Chevy-powered '68 Camaro has rocked a Holley carb; for the last eight, it was a 950-cfm Ultra HP. This thing worked ...

We may receive a commission on purchases made from links. The throttle body is a vital component of a fuel-injected internal combustion engine. It has a pivoting butterfly valve or throttle plate to ...