i have an 86 305 with the computer controlled q-jet, i put a crane compu cam 2032 and wp s/r torquer 305 heads and coated headers on, when i go to take off from a stop (standard) it bogs right down like it wants to die and you hear a pop, when you get going cruising at a steady rpm, the exhaust pops like it's backfiring, what would cause this? the cam recommends 3:45 rear gears or higher, i have 3.23's would that cause it to bog down while taking off? this thing is pissing me off, it surges too when you keep a steady rpm, but what is causing the popping? i'm also using the stock mechanical fuel pump, is that sufficient for this combo? also when you get it going it seems to pull fine in the upper rpm's but every so often if you mash the 4bbl it'll pop through the carb, but not all the time

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86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi

95 Beretta Z26, 3100 V6, 4 Speed auto, stock

[This message has been edited by 86Z (edited June 25, 2001).]

 

More likely than not it's the quadrajet. If it is so, you have two options:

One, get an edelbrock or holley or demon or some other quick & easy fix.

Or, the one I'd do.. Get a bigger Rochester, like a 700+cfm, then have it PROPERLY rebuilt and tuned, and you'll see some great performance and gas mileage.

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89 iroc-z 305 tbi
k&n filtercharger, open element air filter. nuffin' else