performance upgrade ?
i have an 84 monte carlo with a 305 in it its got a cam forged pistons new rings intake 600 cfm carb performer series intake manifold headers msd ignition port and polished heads and 3 angle valve job what do you think the horsepower is on it now?
the only way to know for sure is to dyno it. Some times "some" perfomance parts really dont add to the Horsepower but instead it helps it. Although if I was to make a guess, I would say you are in the 255-275 horsepower range. If you add a "cold air" with a "K&N - like fliter"and put 2.5" dual exhaust with "good" mufflers, and a under-drive pulley set up, you can go over the 300 mark easy.
I had a 86, The 305 was hurting when I bought it, I put a 383 "stroker" in it (a 350--> bored and a "400" crank) Aluim heads, FluidAmpr balancer, underdrive pulley's, 750CFM q-jet plus a whole lot of other stuff, But I dyno'd in at 377 to the rear wheels. The onlt thing I had to do was get a truck tranny and a custom/balanced driveshaft. Lots of memories....... Have any pics??
not much ! the most you can get out of a 305 is about 300hp. it all about cubes. could have bought a 350 for much less.
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