[RAIV-Z]

Originally Posted by Tom Vaught

Ed's engine makes 660 hp from a 535 engine NA so 1.23 HP per CID with the High Dollar heads/engine build. You can see why Ed and others are somewhat confused by the deal.
Tom Vaught

Any theories as to why my 535cid RA-V engine isn’t making the expected NA power ?

This information would be invaluable in helping me determine next steps.

[pastry_chef]

Originally Posted by RAIV-Z

Any theories as to why my 535cid RA-V engine isn’t making the expected NA power ?

http://speedtalk.com/forum/viewtopic.php?f=1&t=3396

Its VERY hard to discount the opinion of Darin Morgan, one of the top cylinder head guys in the world!

But what I see so far is TWO V-head engines from the same source fall short of expectations!

1) Ed Page 535
2) The 755 HP street engine that supposedly *shoulda* made 900 HP if it did not float the valves at 6600 RPM's

So 0 for 2...

Originally Posted by NHRASuperStock455SD

My engine in High Performance Pontiac has the same springs as yours. My engine will make way more horsepower with more spring too. We estimate close to 900HP, but then it would no longer be a street engine.

http://forums.maxperformanceinc.com/....php?p=4605820

Someone needs to start getting it done and STOP making excuses!