How to get better throttle response?

cammed89lx said:

Hello again guys, so my car feels good, runs strong. but doesnt really wake up until legit about 1 full second or more after i slam on the accelerator. My car is a 306 f cam, rpm air intake. AFR 165 heads, 650 carb. 1.6 rr. and a brand new K & N filter. My last 5.0 was fuel injected and i know that fuel injected have better throttle response than carbed but is there anything i can do?

Click to expand...

you have it backwards...carb has faster response than efi.

BYRDPE said:

you have it backwards...carb has faster response than efi.

Click to expand...

That’s an opinion… And opinions are like noses…everybody has one.

Until you convert to EFI, you will need to work on carbs. The first thing you need to realize is that a carb is a complex device with more parts than a wind up mechanical clock. The parts all stink like gasoline and are easy to lose or install incorrectly. I have lost more than a few parts in times past and had to take a carb apart a second time because I misplaced something. People who think carbs are easier to work on than EFI are sadly misinformed. There are much fewer parts to lose, misalign or assemble incorrectly on a 5.0 Mustang EFI than the same performance capability carb.

See How Carburetors Work - Popular Hot Rodding Magazine for a primer if you aren’t intimately familiar with carbs and how they work.

For more info including YouTube videos, see how carburetors work - Google Search

Do a Goggle search on the make and model carb you have and find the service and overhaul manual for it along with tricks and tips for it. With that in hand, purchase an overhaul kit for your carb and a gallon (or larger) can of soak type carb cleaner that has a basket in it for soaking parts. Remove the carb and disassemble it according to the instructions you downloaded. Soak the parts in the cleaner overnight and the re-assemble with the overhaul kit parts and instructions. If you are lucky or you pray often, you will get it put back together correctly and it will run better than it did before you did the overhaul.

There will be a number of adjustments for choke linkage, secondary throttle linkage, metering rods (GM Quadra Jet) and the accelerator pump. Pay careful attention to the adjustments and how to correctly make them. A misadjusted carb will run poorly, and unlike EFI it won't pop a code to clue you in on what's wrong.

cammed89lx said:

really? both of my carbed cars ive had, had slower throttle response then my fuel injected cars. Regardless, do you have any ideas. Thank you

Click to expand...

sorry...i don't. i haven't had a carb set up since the mid 80s. with the invention of efi, i doubt i'll ever go back.

That’s an opinion…

Click to expand...

agreed....