ryanguyton

i looking into build my 305 in the summer i want more power out of it i was told to get cams and a bigger exhuast what would b a good cam to put in my 84 camaro and if u no of any more mods i could do that who b great this will b my 1st rebuild so dumb it down for me thanks

HUSSAIN

Choose CAM WITH HI LIFT AND DONT WARRY ABOUT DURATION



I advise you VOODOO

bigj350

iTrader: (1)

Honestly your better off getting a 350. Its cheaper to get more power out of a 350 than a 305.

ryanguyton

would any 350 fit in or what what kind of 350 iam i lookin for i no a 4 blot main but does it matter if its from a car,truck,van etc..

ASE doc

You don't need a 4 bolt main in any car application under 500hp. 4 bolt main is a popular old term that doesn't really mean much in the real world. Even serious builders dont use 4 bolt main blocks. They use a 2 bolt block and drill and tap it for splayed caps. All small block chevy engines after 1962 have the same mounting bolt pattern and accept the same transmissions. The best advice is to use a 350 from a 3rd gen since it will have the better one piece rear main seal and it will accept a roller cam if you decide to build it.

If your 305 is fairly fresh, meaning less than 100K miles, you can get a decent power boost with a cam swap. I would stay with something very mild with your stock heads. Someone mentioned going high lift but your heads can only accept about .480 without machine work and unless you port them, they wont benefit from much more than that as the as-cast OE ports and small valves will stall at about .480 Something like the Comp 252AH-11 or 252AH-12 would probably work well for you. The -12 is a mild cam upgrade for TPI, crossfire, or TBI motors. It will also work fine in a computer controlled carb application. Of course, you'll need to get lifters with it and follow the istallation and break in instructions absolutely.

The slight increase in duration over stock will work with the increased lift to optimize cylinder filling with your stock heads, within the engine's optimum power band. Unless you're going to vastly improve your stock heads (which would basically mean tossing them in the trash and getting new ones), and upgrade your intake, any larger cam will only kill what power band your engine has.