Ive finally decided between these two cams. Im looking to improve the performance on a car that is somewhat of a daily driver. The cam has to work with the stock computer also. Which of these two will be better for me? Will the motor be able to handle the lift of these cams? Will either of these cams give the motor a rougher idle?
http://store.summitracing.com/partde...4&autoview=sku

http://store.summitracing.com/partde...4&autoview=sku

 

.444" lift is mild and you wont have to worry. However, both camshafts might not work with the computer. I was able to use a ZZ4 (208/221) with my stock speed density computer, but the LT4 hot cam (218/228) required a custom chip.

This one will work for sure, but its only slightly bigger than stock:
http://store.summitracing.com/partde...0&autoview=sku

What other mods have you done? Camshaft swaps should be one of the last things you do after exhaust upgrades. I prefer to do a cam and heads at the same time so you can get cams with better lift to go with the better heads. Otherwise you're limited by the stock heads.
I'd recommend swapping the intake manifold at the same time while you have it off.

 

I dont currently have any other mods done but in the future I plan on putting a set of headers on the car. Can anybody tell me if these cams will work with my computer? Also which one sounds better for me?

 

For some reason your first link and Kevin's link won't load for me.

The application link for your 2nd one says, "Recommended for TPI motors with performance chip." Now, why they say that, I don't know. The specs don't look like it would mess with a MAF TPI's brain.

 

Here are the specs from the cam on the first link. Will these cams give the motor a rough or noticeable idle?
Cam Style:Hydraulic flat tappetBasic Operating RPM Range:1,500-5,500Intake Duration at 050 inch Lift:212Exhaust Duration at 050 inch Lift:218Duration at 050 inch Lift:212 int./218 exh.Advertised Intake Duration:260Advertised Exhaust Duration:268Advertised Duration:260 int./268 exh.Intake Valve Lift with Factory Rocker Arm Ratio:0.444 in.Exhaust Valve Lift with Factory Rocker Arm Ratio:0.444 in.Valve Lift with Factory Rocker Arm Ratio:0.444 int./0.444 exh. liftLobe Separation (degrees):114Intake Valve Lash:0.000 in.Exhaust Valve Lash:0.000 in.Computer Controlled Compatible:YesGrind Number:CS 260AH-14

 

Also how much of a performance gain will this give me with the cam and a set of headers?

 

I just noticed that the cam with the one cam says it is for a 350 and says nothing about fitting a 305. Will this still work?

 

Here's another one worth looking at.
http://store.summitracing.com/partde...2&autoview=sku

I'm planning on running that in my 85 tpi also. Its basically a comp XE256 on a 114 lsa. 305 v 350 means nothing. As long as it is a flat tappet and has modest lift and duration it will work.

 

What would the idle be like on the 260 and the 268 cam? Rough, fair, smooth? Any different than stock?

 

anyone?

 

Ive heard people say that computer controlled motors should have a cam that has at least 114 LSA. Wouldn't 112 LSA be fine for mine since the stock cam for 86 has a LSA of 109? Also, I think im gonna end up going with the 212/212 .444/.444 cam. Does anybody know if it will definetly work with the computer and if it will fit my motor since it says it will fit a 350 but says nothing about fitting a 305?

 

i thought for tpi cams you needed a 210 220 duration and 112 lsa. maybe thats for the roller blocks but make sure i might be right on this one.

 

The lower the intake duration the tighter you can make the duration to compensate. The 86 TPI cam and 88-92 TBI cams are 109 LSA because the intake duration is very small. But for larger camshafts, you want as high an LSA as possible to make the stock computer happier. The 212/212 .444" cam you list MAY or MAY NOT work with the stock computer. You have an '85 TPI setup which is a one year only computer and nobody has really messed with those. I listed my experiences with the ZZ4 and LT4 HOT cams. Its a judgement call on your part since no one else has responded with evidence.

 

The motor and harness in my car are from an 86. So does the 112 LSA for a 212/212 .444.444 cam sound good? And if it doesnt work with my stock computer what changes would I have to make so that it will? Also, does anybody know for sure if it will still fit my motor even though it says 350 and nothing about a 305?

 

Put in an '86-'88 ECM.

It will "fit" your 305. It will act slightly more aggressive in a 305 than it would in a 350 - but not enough to cause any issues.

 

I have the 86 ECM in it.

 

I would think that you'd be good to go, then.

 

Thanks