How much more hp will i get with built camel back heads on my 350 chevy?

Question

I have a real built sbc 350 i have 305 heads on it now im getting camel backs built for it, a matched high revving thumping cam and roller rocker kit. How much hp will i gain. I have 4:11 rear end and were getting a 4 speed muncie. How much hp will i gain and how much quicker will it be?

Answer 1

Have you started?



If not, scratch that idea, and get Vortecs or Vortec replacements. They blow the camel backs out of the water when it comes to design.



Aftermarket Vortec replacements are more money (about $200 total) but include the common small block chev spring diameter, screw in studs, they can have bigger valves, they have better flow, and they are thicker castings. Not much to pay for all that.



Camel backs are only good for racing classes that don't allow Vortecs. Otherwise they are destined for collectors, and that's it.



BTW, the 4 speed muncies aren't all that either. A T56 is far better.

Answer 2

First, for street, a 4:11 is excessive and will eat you alive in fuel costs. To know what your total power output is you will need to dynamometer test it when it is done. Otherwise it is a low ball and often disappointing guessing game.

Answer 3

roughly about 50-100 hp give or take depending on whats been done to the motor whats been done to the trans and as far as the rear that depends on if its positive traction or limited slip or open differential but if its rite then its going to be very strong and VERY F A S T

Answer 4

Hard to say, because it depends on if you have the fuel system that can handle it.

When you have the heads off, you might want to consider a more advanced camshaft as well.

Then you could consider tuning the exhaust system as well, with duel pipes.