Or will I be the guinea pig????

 

You just beg to be asked "why" ?

I know of very few 305's that can max out a
stock TPI, so putting a MR/SR/HSR/etc. on
a 305 is just going to kill it on the bottom end
and the 305 can't spin/breath high enought
to take advantage of the aftermarket intakes...

YMMV
mike

 

Word.
I think aftermarket runners/base would do you much better than a stealthram.

 

note to self, went at least .3-5 sec slower with SLP runner vs. stock runners on a siamesed base 305 in sig.