what else to do

[minitubbed_82lx]

I am looking to make my 82 faster. Right now its a 306, gt40x heads, 1.6 fms rr, eddy rpm intake, 650 thunder series carb, under drive pulleys, fms shorty headers, electric fan, x-pipe, hooker aero chamber dumps, t-5,alum driveshaft, and 327 gears. I am planning 373 gears.
What else would help? Or is it time for a stroker or 351?

[FM2NOTCH]

cam, gears

[minitubbed_82lx]

I have an x303 cam in it, sorry forgot that

[LilRed86coupe]

Get the heads and intake professionally ported and then add some long tube headers if your looking for N/A power. But the fast,easy and cheap way to get instant HP is to add some good old Nitrous Oxide. That was one the first things i added to my 86 coupe way back in 1991 when i was in high school. Forgot to add, i ran a X303 cammed 306 almost the same as yours but with EFI and my car pulled way better with 4.10's than with 3.73's.

[minitubbed_82lx]

would it be cheaper to get arf heads? maybe 165's and a better intake?

[LilRed86coupe]

would it be cheaper to get arf heads? maybe 165's and a better intake?

Mmm..you could sale your heads & intake you have now and use that cash towards some new heads & intake. I would do the AFR 185's, Edelbrock RPM Air-Gap intake and some long tube headers.

[Tracer]

Get some Kaase P-38 heads. Check out this youtube video
https://www.youtube.com/watch?v=hW6l_MN9Uys

[minitubbed_82lx]

I thought if i went with afr185 I would have to change the pistions?

The Kaase p-38 heads would be bad ass but holy crap not looking to spend 2500.

[Farmer83]

Take some weight off the car. Free & effective.

[horsepowerjunkie]

I also agree with the 4.10's. I went from 3.73's to 4.10's and made a nice improvement. Go with the trick flow twisted wedge heads, you shouldn't have to mess with your pistons. I would also ditch that Edelbrock carb for a nice double pumper holley!

[minitubbed_82lx]

I was afraid 4:10's would be to much. I have a chance to buy a set of trick flow 170cc with little port work or stock afr165. A grand each. 650dp or is that to big

[horsepowerjunkie]

For $200 more than those used heads, you can get brand spankin new ones with the 58cc comubstion chambers to up the compression a little. http://www.summitracing.com/parts/tfs-51410010-m58

As for the carb, don't you have a 650 on it now? CFM is CFM. A stout 306 with 5-speed & 4.10 gears works great with a 650 double pumper carb! The secondaries are open as soon as you mash the pedal, no waiting for an air door/etc. to open.

[minitubbed_82lx]

hell for the price i will buy them new. Yes I have a 650 so that was a dumb question. Thanks guys, what hp differance should the heads and carb make?

[PaceFever79]

As much as I prefer AFB/Performer carbs for my street cars....

You could pickup 1-2 tenths (or more) with a well tuned Holley 650 DP at the track.

You didn't mention what cam you are running?

[minitubbed_82lx]

fms x303 cam

[PaceFever79]

fms x303 cam

Sorry, I just realized you posted that mid thread.

It may be more trouble than it's worth, but if you are intent on squeezing more out of your present combo, a Comp or Lunati cam ground for your carb combo would probably net another few tenths

[minitubbed_82lx]

I have thought about that, the trick flows are on the board forsure

[PaceFever79]

If you do go with trickflows (a good choice I might add) for sure get whatever off the shelf or custom cam that Comp or Lunati recommends for your setup. Also make sure that the lifters and springs are correct for the cam. These two things really matter because on 306 cubes you want it to be able to rev well upstairs, so you can make optimum use of the heads.