Far,
Zero decking is really a good thing for any Pontiac, regardless of the compression ratio.
The combustion process is improved quite a bit by doing this, it has to do with effecient one direction flame travel, and using (and mixing) as much of the air/gasoline mixture as possible.
The cam Bret is referring to is, a hydraulic roller cam, it takes hydraulic roller lifters, not a stock type part. This type of cam has good performance advantages, and none of the potential headaches, a stock type flat tappet cam can have
The 6X-4 heads IMO, are a great way to go for a 4" stroke engine. The compression ratio will be around 9.3-9.5:1 w/ flat top pistons. 6X-4 heads have harder seats, can perform quite well (as many others can) AND they are pretty plentiful...
I think a 4" stroke engine w/ 6X-4 heads is a great build, don't know of any, just another good combo that would make a good street engine...
I'm glad you pulled the engine out when it just started knocking, I'd hate to see a scrap 428...
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1977 Black Trans Am 180 HP Auto, essentially base model T/A.
I'm the original owner, purchased May 7, 1977.
Shut it off
Shut it off
Buddy, I just shut your Prius down... 
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