Does size really matter???

[stang_hp]

Can anyone give me advice on what cam I should run? the stage 1-499/510 that came with my H/C/I kit or upgrade to the stage 2-542/563? Also if I do upgrade will I have to upgrade the valve springs and pushrods, and do any piston notching? my setup is listed in my sig and all parts are new.

 

[bullitstang1313]

The top end kit that you bought was designed for the stage 1 cam or they wouldn't have packaged it in the kit. I would probably stick with it or go with a custom grind cam. If you upgrade, you will want to upgrade the springs as well since the lift is over 550.

 

[stang_hp]

I will probably stick with the stage one cam because it makes sence that it came with the kit I just dont want it to rob alot of hp from my 331. thank alot for the info.

 

[bullitstang1313]

It is not always the lift of the cam that matters. The duration has to do alot with how the cam will perform. I think the stage 1 will have a better low end torque than the stage 2. The powerband may be stretched out a little higher with the stage 2 though. I'm waiting for someone with either one of these cams to step in and provide some experience.

 

[stang_hp]

Thanks alot for your help.

 

[VIPRETR]

Upgrade those springs, and jump up to the stage two cam. The stage one is designed for a stock displacement/stock piston. Don't worry about the loss of torque. The 30 extra cubes you have will make up for it.