If you've got a stock engine, the factory air cleaner should flow plenty. I'd keep that, since it pulls air from the fender, and not hot air from the engine compartment. You're not doing anything for performance, pulling hot air in, unless you have an engine that truly needs more air.
Thanks. You saved me a bunch of typing.
A "hot air intake" is a total waste of time, money, effort, and enthusiasm.
the tuck is missing the tube that is inside the fender and the ducting. I would not mind get them for the truck if I could find some with out the baffle and silencer.
Seems easy enough. The "baffle and silencer" on the 350s was mildly restrictive, the item used on the 305s was not restrictive...right? I've never looked at a 305 unit, but I've heard they're open inside instead of necked-down like the 350 job.
WHAT ENGINE do you have? A 5.7L cannot pull enough air through the TBI for the air cleaner housing to make any improvement except that a taller paper filter element may last longer before it gets dirty enough to be restrictive.
Kinda guessing that the 7.4L with the TBI "round port" heads is approximately the same, but I don't have direct experience.
You could install an air filter restriction indicator and see if the filter is a problem at WFO-max RPM.
I have a stock air cleaner base and 3 lids 2 are single stud I plan to use one of them the 3rd is dual stud and I plan to switch from dual to single stud. I have an air cleaner form an older truck that has the tall filter and lid will they fit the tbi base?
Try it and see. Seems easy enough.
the tbi base I have is plain it has no hoses except for the breather and no hot air stove pipe do not know if this is a 454 only thing or if other engines were like this. the older air cleaner has a lot of hoses and the hot air stove pipe and flap that I do not want and do not think I need where I live.
If you're driving the truck when the weather gets down to ~45F or somewhat colder, you probably need the hot-air intake system.
The worst carb icing I ever had on my Honda Civic was somewhere north of Los Vegas, NM on I-25, coming South from Denver. I thought I blew it up. Full throttle, first gear, car would hardly move under it's own power. I stopped, lifted the hood, looked around for problems--distributor spun, or plug-wires fell off, or something. Saw nothing unusual. While I was looking around, the ice in the carb melted. When I started the engine, it ran rough for a few seconds...and then had all the power I'd expect.
will the tall filter and and tall lid work on the tbi base?
You have the base and the lid. Try 'em and see.
I also plan on the doing the tbi mods
Waste of time and effort. Make sure the TBI unit is clean and has tight throttle shaft bushing areas (shaft rides on the aluminum of the TBI casting.) Verify that the IAC passage is clean, the TPS works properly, and the injectors are correct for the engine, and the injector harness isn't frayed.
Proper gasket between TBI and intake manifold.
maybe the vortec fuel pump
Not a bad plan.
I just got a higher voltage coil
Keep the original one, in case the new one fails. There's a good chance the original coil is
better than the new one.
