Quote:

---

What kind of Hp are the FAST guys making with manifolds?

I run a stock stroke 440-6 in my A12 runner...The reason i went
that rout than a stroker is the car is a real m code and wanted
to keep the originality of the car...I was asked why, Its cheaper
to buy a stroker kit and so on.. As for the H.P. it was never
dyno, The car is 3920 11.65 at 117.60 175 60' on bias..
12 to 1 comp.
hyd flat tappet..

I would build what you want.. Can you get 425 hp out of a stock
stroke 383? I would think so..