[Cliff R]

Larry, the other "monkey wrench" thrown into this and other similiar topics is the definition of a "street car". The range is so broad, that it includes stone stock looking daily driven cars, to full blown race cars with a working tailight, some attempt at an exhaust system, and a license plate....and anything in between!

I don't ever remember seeing any distinct classification, or set of rules that qualify any particular car for the title? For most folks, if they can drive it on the street, and are happy with it's performance in any/all areas, good enough for them, and good enough for me......Cliff

[Juliano]

A street car should be, As defined by the Federal Transportation Act to pass a 118 item safety check inspection ensuring the new or used vehicle meets federal safety standards before being able to be plated for the road. from Canada..................

[Skip Fix]

One thing that never changes, there is certainly more than one way to get the job done, and being that it's a hobby, no RULE BOOK telling us how we have to do it!.......Cliff Amen Cliff! My exact thoughts, fast Ponchos.

"Regardless of the methods one chooses to propell his/her car down the track, it ALWAYS takes considerable time/efforts to get everything "dialed in"....and typically quite a bit of expense as well" --My other thoughts even when using "less expensive" factory parts as a starting point, you still spend the bucks. Kind of like that free puppy or horse- the expenses are just starting.

Cliff your new KRE heads are some of those "big high rpm "heads others talk about.

But the biggest thing I've tried to bring up is many of the "big head" combination ARE NOT!!! any higher rpm motors than the smaller ports. From Pontiac engineers HO heads, to your KRE heads, to many others E heads. So to blanketly say using a bigger head will make your motor a high rpm motor unfit for the street because there is no low end is no where near correct as it is the whole combination. Steve's solid roller 220+cc E head motor is barely over 5600 rpm peak, still tractor motor range.

So scaring some enthusiasts with the threat of no bottom end from using larger KRE or E heads they could lose the opportunity to go maybe a little faster as your car did switching to "BIG HIGH RPM" heads from smaller "tractor motor iron heads". Why not start there for the detailed tuning?

Showing that the same sized heads can also have as varied power ranges also shows it's just not as simplified as head size.

Larry good selection of alot of different combos and ways to get there, yours is another also. get that tranny fixed and let's go racing !

That PSN we all had a hard time getting in the 11s Floyd too, good old Texas heat! My 455 improved alot with an intake, 3" X exhaust, but the biggest was the convertor,tranny change from that one. The year we made those changes at the 1/8 mile PSN were were 7.08s and David saw my tail lights.

Here's another iron head 400 combo for you that was knocking on the 11s So the little guys can get pretty close too, even with "big iron heads".

http://www.pontiacstreetperformance....uild400SF.html

[gjn]

http://www.pontiacstreetperformance....d455GregN.html

11.935 @ 113.33 last week.

Skip,

How much did you pick up with the 3" exhaust? I have 1 5/8" headers and 2 1/2" flowmaster exhaust with h-pipe. I plan on going to 3 inch x-pipe with decent mufflers.

[Skip Fix]

Previous the car had a 3" H pipe into 3" Flowmaster 2 chanbers and 2 1/2" mandrel tailpipes(NMCA rule). Open headers the car generally ran anywhere from 0.1-0.3 seconds faster depending on the cam/headers. Making the tranny convertor swap we noticed that the old system has some rust so we removed it compeletely, not even pipes on the car. Did some track tuning. Then added the 3" Dr. gas X, 3" welded ultraflows, 3" mandrel tailpipes and the car ran the same even with the extra weight, and is so much quieter.Mike Cooke on his old red TA also felt going to a 3" system helped get his car in the 10s.

The 400 also picked up with 1 3/4 over 2" headers into that first system. The RAIV heads had a reversion issue with the slow velocity of the larger 2" headers. So velocity can be an issue on the back end even with a low restriction muffler.

Swapping front "skinnies" picked my car up 0.1 over 15x8 snowflakes also.