429 SCJ Build/Dyno

http://www.mustangmonthly.com/techarticles/mump_1303_how_to_build_429_super_cobra_jet/

Can anyone spot the mistake in this article?

That may be true, but read it again closely and there is even more. It took me a double take to catch it also.

Hint look at the photos.

No Charlie that's not it. I will say it goes in conjunction with the article and the pictures. I guess all the other mistakes, make's the one that caught my eye not stand out .

schmitty wrote:I have never personally set a hydro cam to 20 thou lash.

                                                                                                                                                        WINNER  .024" on the feeler guage, and article lists that a hydraulic cam is used.  WINNER  JeffGFG 429SCJ was mechanically cammed.17. Valve lash is adjusted per the firing order at .022-.024-inch cold. You want the valve seated so it has just closed. The valve stem and rocker tip should be coated with engine oil, which also applies to clearance

GT300TD wrote:

And to think that this article appeared in "Mustang Monthly"  . Looks like something cheby craft would print   .

The article does have alot of good information. I think they should have listed the cam spec.'s and proof read the article better. They more than likely picked up alot of HP from the head porting, electronic ingintion, roller rockers, HP Holley, and better coil, which they did mention in the article. If they would have mentioned this in a different way, instead of alluding to this as what the factory engines made (425-450HP) it would have been better in my view.