[Skip Fix]

Dom Holmes just set a new record for K/SA in his 78 Firebird with a smogger 78 400 and that "bad" intake with D secondaries. 89cc 6Xs, 0.004 above deck is legal.Stock lift cam.

11.26 @116.77 mph!!!

Big cam, big convertor and open headers cam make one fly. He obviously has the combination down. Unfortunately that made NHRA give the combination a 5hp bump.

[Skip Fix]

Dom Holmes just set a new record for K/SA in his 78 Firebird with a smogger 78 400 and that "bad" intake with D secondaries. 89cc 6Xs, 0.004 above deck is legal.Stock lift cam.

11.26 @116.77 mph!!!

Big cam, big convertor and open headers cam make one fly. He obviously has the combination down. Unfortunately that made NHRA give the combination a 5hp bump.

[tempest455]

That's flying for such a combo!

I'd like to know how much time ($$$$) is spent on a shortblock like that???

tempest455

[Jack Ferris]

NHRA has added 9 horsepower to the 276 factored rating making it 285 for the 180 hp 400 in the 77-78 Firebirds. Somebody ran a 1.69 under in K/SA. Im guessing its the same car? I,ve seen roller combo's that cant go that fast.

[Robert Williams]

I would like to congratulate Mr Holmes, he is doing a fine job with that car and has his act together.

Robert Williams

[David Holmberg]

Good Job, Fly the Pontiac Flag with Pride!

[DAVE RIBEIRO]

Hey Skip,
Mr. HOLMES set the record with the big 280hp/cam
not with the 276hp/cam...It was a mistake in the dragster and is now being corrected.The new hp is
up 10hp to 290hp,which means we all have to carry
140lbs more..Still very fast, the chevie's went as
fast and only got 4hp.??? doesn't make sense ?????
Don was stupid to let it all hang out,the poor guy who has just started racing pontiacs now must spend $$$$$more just to get back to 2002 times..
I think he will be torn down at every race he goes to???It was a good class before he ruined it.
You now have to carry 4-500pounds more than the 305 and 350 camero's. He hurt 7-8pontiac cars for
2003..Time to change classes? Dave 1033/stock

[LouisianaGuy]

What kinda weight is this guys car?
And man he musta put some serious time into hat engine.
Mike

[DAVE RIBEIRO]

I run the same car as Don, but only run 1.15under
They weigh 3810lbs. w/280hp cam,now 290hp ??
The 276hp.cam, weighs 3755lbs. w/stock,balanced &
blueprinted 400ci,stock 6x heads(no-porting)8to1
compression,364lift cams,on 9"slicks,Q-jet, runs
11.70/11.80's at112 mph. Don's car normally runs
11.50 at 115 mph..very fast..Didn't mean to be so
winded..It just shows how fast you can go with the
right combo................Dave 1033/stock

['ol Pinion head]

I love it!

& no 1.77 exhaust valves...

[Ron]

Congratulations to one and all.

Ron

[LouisianaGuy]

Man that is fast i would be happy with 13.00 to 12.99 out of my 455 but cant seem to make it happen
Mike

[Lemans1]

Those are great numbers with those parts!! I dont know how you guys do it. Unported 6x heads and stock type cams; qjets and heavy iron smog intakes, yet as stated, running faster than some roller cammed cars! Is it all in the shortblock? Where is all of this power coming from?? Just a hint...please?

[tempest455]

Curious......what the "real" duration at .050"?

tempest455

[Goatman]

Curious as to what "no head work means", before the acid etching...........

Don't know who these guys are trying to fool.

All in all, still flying with a stock appearing drivetrain. Very nice work.

Chance favors the prepared mind.

[DAVE RIBEIRO]

Goatman,
If you run fast like .90 to 1.25 under the index,
you are invited to the tear down barn for inspect-
ion...I am torn down at least 4-5 times per year,
without warning except for going fast...Remember,
you tear it apart and they check the parts over and you put it back together sometimes in the dark
and have dial the car without a Timerun..THE inspection of heads and manifold is a bitch.NO-
grinding or getting rid of flashing debrie.They
then check the valve pocket/ bowel,measure valves,
chambers,pocket,etc. NO-MATCHING heads to manifold
remember Stock means stock...SO its very tough to get anything by these guys and it's not worth being thrown out for a year..My cam measures .348
not .364,my valve-springs are 1.44 dia which are small and short so I run alot of spring-pressure
1.50/1.65lbs closed.This cures the valve float problem.Our cams are short but the lobes are tough
on valve springs.(STRAIGHT UP AND DOWN,FLAT ON THE TOP) These are strickly race cars, not driven
on the street.I see you guys love to talk about-
MPH,in dragracing it's E T that wins NOT-MPH. THIS
is why we start are the rear and work forward.The car must hook,nomatter what the horsepower ????
I watch these overpowered street cars come to the track and get blown away by a well-tuned low /HP
STREET CAR...I think you should build as much--
bottom/end as the car/track will handle?? MY CAR
weighs 3850lbs.and has slapper bar that have been
customized,runs low 1.50s 60'.Work more on the
suspension,shocks,weight transfer,etc. you will be
pleasently surprized??? good luck racing.Dave/1033

[tempest455]

I realize stock cam means stock lift for NHRA stock eliminator. My question was the cam duration. Most NHRA stock eliminators run duration in the 270-280 deg. range @ .050" regardless of the stock cam lift.

I don't blame you if you don't want to share specs.

tempest455

[Skip Fix]

Dave, Welcome to the boards! I think we talked a few years ago about your car. As you can see I'm partial to 78s. My first new car ever. When running NMCA years ago we would have partial teardowns, P&G ,pull carb. Seeing you guys have to pull a head and reassemble a motor put together in a clean room in the pits with dirt blowing, my hats of to you.

Alot of emphasis on how bad the later intakes are has been brought up. I always try to post what you stockers are doing to show that isn't the limiitng factor.

Where do you degree in your cam for the lower compression ratio?

I'll agree it fun to hook and go and beat those guys with BBC mini tubbed cars. My current combo is 1.53 60 fts and 7.00@100mph in the 1/8 through mufflers.

[DAVE RIBEIRO]

Lemans 1,
Sorry,I forgot to answer your question.It's not
just the short block.My shortblock is as stock as they come..But it is correct to the spec's.....
THis means paying attention to small details..My
crank is stroked .13,and stock GM polished,pistons
are 8-1 venolia's,stock(moly)Rings,stock RODS,deck
is 0,stock hyd lifters,which I REUSE AGAIN/again..
I agree with Floyd Hand's comment reusing lifters,
if you check them out???Heads,manifold,are stock
Q-jet,HEI,MSD(6A)1 3/4" HEADERS,etc. Chad it's all
about Combination,cam,convertor,trans,rearend-gear
hope this helps??
Tempest 455,
I thing its like 218/226, but not sure?I will look for cam-card......LOL..Dave 1033/stock

[Goatman]

I realize the cars are supposedly stock Dave, but I know a little bit about what you guys go through, as one of my engine builder buddies up here has the same rules to deal with in his circle track cars.

For every dollar you port, gotta spend $5 to cover it up. Those cars are about as stock as mine is. No offense, but I know what the deal is.

There are ways around tear downs and motors that are supposedly 280HP aren't ever going to push 3800+lbs down the quarter in 11 seconds. In fact, I don't even think that a stock D-port head will give you the volume of air needed to make that kind of HP stock. I will never recognize those classes as being stock in any form, they just use a different set of rules to keep the classes competitive. If that's what attracts you to racing, kudos to you. I am not trying to belittle the class, just stating a few facts.

Anyway, about the stock suspensions deal, I hear you. My car has run a 1.58 on stock suspension, only thing I had is adjustable shocks and I boxed the upper control arms, no traction devices of any kind. Motor made 642HP and 618ftlbs on the dyno, pushed my 3500lb car to a 10.62 @ 128. I only got to make 6 passes, so I figure there was more in it than that. I'll be running stock suspension again this year, but with good tubular control arms for a little more help with the 60'.

Chance favors the prepared mind.