Call around to a few of the major cam companies. Most of them have exceptional tech lines. But I warn you, you have to have realistic expectations and know what you want to get out of it in the end. Just saying "as much hp as I can" is not going to cut it. Where do you want the power? What do you want to accomplish with said power? etc.etc.etc.

 

i know a guy that had "too" big of a cam as in hp and he runs nothing but premium. his is a bronco and he's got problems with knock on lower octane. don't know if you'll run into that with these blazer since they have knock sensors but i thought it be something worth mentioning.

 

yeah, thanks. I already run premium in mine i just want a little bit biger with a ran form 0-5000 it is a daily driver so i dont want that ruff idle. just a little more toruqe

 

Basically the same thing you did, but costs $$$. Still has the same result. Increased throttle sensitivity at lower throttle angles, but no impact on WOT performance. I did scanned tests with and without the deflector and times to 60 didn't budge with the modded throttle blade.

 

I'm sorta hijacking here... so then the throttle blade off the 350's wouldn't be to my benefit if I were to do that swap? I remember reading somewhere (on here) that the 350's were a little shorter (the diverter flange)... So I'm guessing there's no point in running to the pick-n-pull to get one? Just a waste of 5 bucks?

 

If you change the cam out for one that peaks higher in the RPM range, increasing the airflow needs of the engine, having a lower deflector on the throttle blade may provide further gains while still dispersing the EGR gasses properly in the intake.

 

When i frist done the mods i feelet more power but know I think that the maf sensor has went hay wire like his done so im going to buy the aftermarket one that will slove the issue. I will try the sensor and post on it says 10-15 horse so that should be power i can feel.

 

dyno is the true test

 

so how big should i go on the cam? I want more power but still be reliable, ranging form 0-5500

 

I think the best idea is to do a vortec 5.3 swap....

But if you google hotrod 4.3 they rebuild a 262 (4.3) to a 270 with a larger cam and all the info... they made a "reliable" 301hp...