How much HP can a stock TBI handle?
around 275 hp
Stock small-block throttle bodies only flow around 500 cfm (compared with a stock Q-jet that flows 750 cfm). It’s possible to make around 275 hp with a stock TBI unit, so rather than go nuts on a heavily modified TBI, I’d suggest you start by making sure the existing TBI unit and injectors are in good shape.
How much PSI does a TBI need?
The fuel pressure regulator is set for approximately 12 psi (30 psi on ’94 & ’95 BBC trucks). With a service range of 9 to 13 psi being considered good.
How much HP does a cam give you?
Does a camshaft increase horsepower? Yes, a camshaft adds 10 to 20 horsepower depending on the setup. To get the full potential of the high-performance camshaft, you’ll have to swap out additional components like the air intake, exhaust manifold, injectors, and valve heads.
What should the fuel pressure be TBI 350?
The fuel pressure regulator is set for approximately 12 psi (30 psi on ’94 & ’95 BBC trucks). With a service range of 9 to 13 psi being considered good. This equates to a 17% to 20% change in injector flow rate over the service range.
Does camming a truck make it faster?
Does Camming A Truck Make It Faster? In most cases, yes, but it depends on the model of the truck and which custom cam you use. With that said, aftermarket cams are designed for high-end performance, so you can typically expect to experience faster speeds after camming a truck.
Is a Vortec block the same as a TBI block?
The blocks are slightly different, but should interchange(all 350’s used the same block casting number from 95 on). You’ll lose a little compression since the TBI engines had a piston with a dish and a slight bevel around the edge, the VORTEC pistons only have a slight dish to them.
What is the disadvantage of throttle body injection?
Higher condensation and fuel puddle Another disadvantage of TBI is that the manifold cools faster. This leads fuel to puddle and condense in the interior of the manifold. The fuel is more likely to condense, because it traverses longer from the throttle body to the combustion chamber, and cause fuel puddles.