Joel5.0

That one you mention isn't sanctioned then. That little junk has gone 5.06 in the 1/8 and 7.98 @164 MPH in the 1320' (aka 1/4 mile).

Tony71502

What are the RPM capabilities of either set up? Would the extra stroke be a limiting factor? Or is the valvetrain the main limiting factor? I plan on being at a decently high RPM as I want to autoX it....

I plan on supercharging, regardless of which stroker setup I go.

Here's a SC 331 making 775 horses... granted it's an engine dyno.
http://www.compcams.com/community/ar...?ID=1988139647

Thanks for all the input so far, I've learned alot from your comments as well as independent researching.

w8less

generally people dont build the valve train up to handle the rpm. a 347 can turn the rpms just as well as a 331 and make more power on top of that.

mjr46

you should have at least 7/16 rockers and studs and thicker wall pushrods to handle the heaver spring pressures that 'll be needed for the rpm