i am looking for a new carb to replace my rochester 650 quadra jet.. i want something that will pump 650 but im not looking to spend a crap ton of money on this... what should i buy.. i also want to buy a edelbrock cam/intake kit... for the help

 

Is your qjet computer controled? (does it have plugs and wires conecting to it on the front and top)

I think its a really bad idea all together.

"Edelbrock" cams are ancient designs, you may even find egiptian hyrogliphics on them if you look close enough.

Get the intake if you want, they make great intake manifolds. Performer RPM is what i recomend. Though i'm not sure if it will fit under the factory hood of your TA, maybe someone with expierence with TA will know better.. It fits under my 86Z hood with a dropbase air cleaner.

If you want to swap the cam while you're doing the manifold (no sense in swaping the intake if your not, stock manifold is decent), get something of a new design, or if you are set on the old desigh of the "edelbrock" cams summit sells them, "Summit" brand, for 70-80$ with the lifters.

If your goal is to make this thing faster, your money is best spent on headers and exhaust first. You'll see huge gains this way. Find the bottle kneck and fix that; dont just throw parts at it and hope its faster.

 

I just noticed you have headers and exhaust, disregaurd what i said about them


If you have a ccc qjet dont bother with swaping it. they are great carb really, good on gas, and have the potential to make more power then your 305 could ever dream of.


get a newer grind of cam, the old school grinds are ok, but they lack the lower end power and fuel economy of newer cam grinds. crane Zcams, comp XtremeEnergy, and lunati Voodoo grinds are some newer grinds to look into.

 

Listen to Doom86. CompXE cam w/lifters: $200. Timing chain/gears ~$30-40. Required gaskets ~$40. If you want to swap your manifold factor in the cost of a drop base air cleaner. Once all that's done and you've driven it for a while and you're still unhappy with the q-jet you can replace it then.

 

Could u let on to why u want to replace it? its old? want an upgrade? ...

 

well i just herd that the cams in the LG4's are about the size of a pencil, and i want to just have a toy.. i dont mean it to be a crazy speed racer.. but after two years of driving it, i have noticed the difference when i added the headers, and true duals... now im looking for a little more.. so i can break into the 14's with this car..

 

you heard right it is a peanut cam. it makes great low-end torque though, but that is about it. i think the most you could expect from it with full bolt-ons (no power adder), with the factory longblock is probably 220-230 fwhp @ ~4300rpm.

when i had my LG4 with, tuned cc qjet, headers, performer RPM intake, and full 3" exhaust it had really great low end power, a nice ground pounder and a smoke show. but the fun was over at about 4200-4300 rpms. I jumped out on every one at the track, minus the kid who fouled his mustang and the 70's TA in drag trim. the sad thing is that i had a dieing fuel pump and it couldnt keep the bowl full enough to get any good runs, i made 6-7 passes before i decided it was the fuel pump and gave up.


get a cam comparable to comp cams xe256, xe262 or xe268. If you're going to be using the factory conditioned heads and airplane gear i wouldnt go above the xe262. you'll make a bit more max hp with the xe268, but loose low end. the xe256 probably has the flatest torque curve and would be fun to drive.

 

Airplane gear?